Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

"Online First" included
Without submitted and only approved publications
Only approved publications

33397 Publications

Bonding and etch-back of ion beam synthesized beta-SiC for SiCOI formation

Serre, C.; Perez-Rodriguez, A.; Romano-Rodriguez, A.; Morante, J. R.; Fonseca, L.; Acero, M. C.; Esteve, J.; Kögler, R.; Skorupa, W.
  • Lecture (Conference)
    NATO Advanced Workshop "Perspectives, Science and Technologies for Novel Silicon on Insulator Devices", Kiev, Ukraine, Oct. 1998

Permalink: https://www.hzdr.de/publications/Publ-2277
Publ.-Id: 2277


Characterisation of Al-implanted LiF by a monoenergetic positron beam

Sendezera, E. J.; Davidson, A. T.; Fischer, C. G.; Connell, S. H.; Sellschop, J. P. F.; Anwand, W.; Brauer, G.; Nicht, E.-M.
  • Lecture (Conference)
    8th Int. Workshop on Slow Positron Beam Techniques for Solids and Surfaces (SLOPOS-8), Cape Town, Sept. 6 - 12, 1998

Permalink: https://www.hzdr.de/publications/Publ-2276
Publ.-Id: 2276


Non-destructive analysis of elements with low atomic numbers (Na – K) in artifacts using X-ray fluorescence analysis

Schreiner, M.; Mantler, M.; Neelmeijer, C.; Mäder, M.
  • Lecture (Conference)
    31th Int. Symp. on Archaeometry, Budapest, Hungary, April 27 - May 1, 1998

Permalink: https://www.hzdr.de/publications/Publ-2275
Publ.-Id: 2275


Temperaturverhalten von durch Hochdosisimplantation hergestellten Al-Fe-Legierungen

Reuther, H.
  • Lecture (Conference)
    IX. Mößbauerkolloquium, Freiberg, Sept. 28-30, 1998

Permalink: https://www.hzdr.de/publications/Publ-2274
Publ.-Id: 2274


Charakterisierung von durch Ionenimplantation hergestellten Fe-Al-Schichten mittels Augerelektronen- und Mößbauerspektroskopie

Reuther, H.
  • Lecture (Conference)
    10. Arbeitstagung Angewandte Oberflächenanalytik AOFA 10, Kaiserslautern, Sept. 6-10, 1998

Permalink: https://www.hzdr.de/publications/Publ-2273
Publ.-Id: 2273


Strong blue electroluminescence from Ge-rich silicondioxide-on-silicon formed by ion beam synthesis

Rebohle, L.; von Borany, J.; Tyschenko, I. E.; Skorupa, W.
  • Lecture (Conference)
    XIIth Int. Conf. Ion Implantation Technology (IIT´98), Kyoto, Japan, June 22-26, 1998

Permalink: https://www.hzdr.de/publications/Publ-2272
Publ.-Id: 2272


Is there still any hope for blue luminescence from silicon?

Rebohle, L.; von Borany, J.; Markwitz, A.; Skorupa, W.
  • Lecture (Conference)
    E-MRS´98, Strasbourg, June 16-19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2271
Publ.-Id: 2271


The Installations for Materials Research on ROBL at the ESRF

Prokert, F.; Betzl, M.; Eichhorn, F.; Matz, W.; Schell, N.
  • Lecture (Conference)
    Jahrestagung DGK, Karlsruhe, März 1998

Permalink: https://www.hzdr.de/publications/Publ-2270
Publ.-Id: 2270


Microscopic processes of damage production during ion implantation studied by combining time-ordered BCA with MD simulations

Posselt, M.
  • Lecture (Conference)
    MRS Spring Meeting, San Francisco, CA, USA, April 13-17, 1998

Permalink: https://www.hzdr.de/publications/Publ-2269
Publ.-Id: 2269


Pulsed plasma beam mixing of Ti and Mo on Al2O3 substrates

Piekoszewski, J.; Wieser, E.; Grötzschel, R.; Reuther, H.; Werner, Z.; Langner, A.
  • Lecture (Conference)
    11th Int. Conf. on Ion Beam Modification of Materials, Amsterdam, The Netherlands, Aug. 31 - Sept. 4, 1998

Permalink: https://www.hzdr.de/publications/Publ-2268
Publ.-Id: 2268


Formation of surface Pd-Ti alloys using pulsed plasma beams

Piekoszewski, J.; Werner, Z.; Wieser, E.; Langner, J.; Grötzschel, R.; Reuther, H.; Jagielski, J.
  • Lecture (Conference)
    ION'98, Kazimierz Dolny, Poland, June 16-19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2267
Publ.-Id: 2267


Structural and compositional characterisation of N+ and Al+ co-implanted 6H-SiC using optical methods

Pezoldt, J.; Yankov, R. A.; Fukarek, W.; Mücklich, A.; Fontaine, F.; Skorupa, W.; Werninghaus, T.; Zahn, D.
  • Lecture (Conference)
    9th Europ. Conf. on Diamond, Diamond-like Materials, Nitrides, and Silicon Carbide, Crete, Greece, Sept. 13-18, 1998

Permalink: https://www.hzdr.de/publications/Publ-2266
Publ.-Id: 2266


A novel (SiC)1-x(AIN)x compound synthesized using ion beams

Pezoldt, J.; Yankov, R. A.; Mücklich, A.; Fukarek, W.; Reuther, H.; Skorupa, W.
  • Lecture (Conference)
    E-MRS´98, Strasbourg, June 16-19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2265
Publ.-Id: 2265


Nitriding of stainless steel by low energy ion implantation - the nitriding kinetics

Parascandola, S.; Kruse, O.; Richter, E.; Möller, W.
Stainless steels are known for their excellent corrosion resistance based on a native surface oxide layer and a moderate hardness leading to short life times in applications with intensive wear. Hence, surface hardening could greatly enlarge their range of applications. However, stainless steels are considered as difficult candidates for surface hardening. Nitriding by low-energy ion implantation is a promising technique. At target temperatures of about 400°C the formation of a highly nitrogen enriched layer has been observed. This layer exhibits an increased surface hardness and a reduced wear without adversely affecting the excellent corrosion resistance.
This work focuses on the nitriding kinetics which are not well understood. Experimental data has been obtained by time and depth resolved elemental analyses using elastic recoil detection (ERD) during the nitriding process. The ERD technique has been optimised for time resolved in-situ data acquisition. Fast nitrogen diffusion, an energy and current density dependence of the thickness of the nitrogen enriched layer and an influence of the surface oxide layer have been observed. The physical origin of these phenomena will be revealed and a simple model of the nitriding process taking into account the governing physical processes, i. e. sputtering, recovering of the surface from the residual gas and diffusion in the solid, will be presented.
  • Lecture (Conference)
    11th Int. Conf. on Ion Beam Modification of Materials, Amsterdam, The Netherlands, Aug. 31 - Sept. 4, 1998

Permalink: https://www.hzdr.de/publications/Publ-2264
Publ.-Id: 2264


Nitrogen transport during plasma ion nitriding of austenitic stainless steel - the role of the native surface oxide layer

Parascandola, S.; Kruse, O.; Richter, E.; Möller, W.
Austenitic stainless steels are widely used due to their advantageous combination of properties as ductility, strength and excellent corrosion resistance. However, due to their moderate hardness they are not suited for abrasively stressed parts. Hence, the market potential of austenitic stainless steels could be greatly enhanced by a process that allows surface hardening without negatively affecting the other properties. Standard techniques as heat treatment, carburizing and conventional nitriding fail. Recently it has been shown that ion nitriding at moderate temperature is a promising candidate for surface hardening austenitic stainless steels. Surface hardness increased by factors of 4 to 5 leading to wear resistance increases by more than two orders of magnitude have been achieved without compromising the excellent corrosion resistance. It has been reported that the nitriding velocity depends on the ion energy and on the current density and that the passivating surface oxide layer of the austenitic stainless steels may play an important role. In a systematic study the influence of the surface oxide layer on the nitriding efficiency of ion nitriding austenitic stainless steel at moderate temperatures is analyzed by determining the retained nitrogen dose for fixed process times and temperatures but different oxygen partial pressures, ion current densities and ion energies. Additionally, for some selected process parameters during processing, the composition of the near surface region (down to 150nm) regarding the nitrogen, the carbon and the oxygen content is obtained by an in situ experiment.
  • Lecture (Conference)
    Int. Conf. on Metallurgical Coatings and Thin Films, San Diego, April 27 - May 1, 1998

Permalink: https://www.hzdr.de/publications/Publ-2263
Publ.-Id: 2263


Correlation of electrical and microstructural properties after high dose aluminium implantation into 6H-SiC

Panknin, D.; Wirth, H.; Mücklich, A.; Skorupa, W.
  • Lecture (Conference)
    ECSCRM '98 (2nd European Conf. on Silicon Carbide and Related Materials), Montpellier, Sept. 2 - 4, 1998

Permalink: https://www.hzdr.de/publications/Publ-2262
Publ.-Id: 2262


Positron affinities and deformation potentials in cubic semiconductors

Panda, B. K.; Brauer, G.
  • Lecture (Conference)
    30th Polish Seminar on Positron Annihilation, Jarnoltowek, Sept. 17-21, 1998
  • Acta Physica Polonica, No. 4, Vol. 95 (1999), 641-646

Permalink: https://www.hzdr.de/publications/Publ-2261
Publ.-Id: 2261


Hydrogen incorporation into Cu-III-VI2 chalcopyrite semiconductors

Otte, K.; Schlemm, H.; Schindler, A.; Bigl, F.; Lippold, G.; Grambole, D.; Herrmann, F.
  • Lecture (Conference)
    MRS Spring Meeting, San Francisco, USA, April 13 -17, 1998

Permalink: https://www.hzdr.de/publications/Publ-2260
Publ.-Id: 2260


Johann Gregorius Höroldt fecit?

Neelmeijer, C.; Mäder, M.; Pietsch, U.; Ulbricht, H.; Walcha, H.-M.
"J. G. Höroldt fec. et inv": Gemacht und erdacht von Johann Gregorius Höroldt - findet man als Signatur auf dem Boden der prachtvoll dekorierten "Höroldt-Vase" in der Porzellansammlung im Zwinger. Das typische Höroldt-Motiv findet sich wieder auf einem Walzenkrug, ebenfalls aus weißem Porzellan als Träger. Mittels Ionenstrahlanalyse an Luft gelang es am 5 MV Tandembeschleuniger des FZ Rossendorf, zerstörungsfrei aufzuklären, dass die Pigmente der Schmelzfarben auf der Vase der überlieferten "Höroldt'schen Palette" entsprechen. Im Gegensatz dazu wurde z.B. Chrom-Grün am Walzenkrug gefunden, was eindeutig auf eine Kopie hinweist.
Keywords: Ionenstrahlanalyse an Luft, zerstörungsfrei, PIXE, Malfarben, Porzellan
  • Lecture (Conference)
    Jahrestagung der GDCh, Archäometrie und Denkmalpflege, Würzburg, Sept. 23 - 25, 1998
  • Lecture (Conference)
    Archäometrie und Denkmalpflege - Kurzberichte 1998, S. 78 - 80
  • Contribution to external collection
    Archäometrie und Denkmalpflege - Kurzberichte 1998, S. 78 - 80

Permalink: https://www.hzdr.de/publications/Publ-2259
Publ.-Id: 2259


Paramagnetische Störstellen in Si nach Implantation von Pd

Näser, A.; Gelhoff, W.; Yankov, R. A.
  • Lecture (Conference)
    DPG-Tagung, Regensburg, Germany, March 23, 1998

Permalink: https://www.hzdr.de/publications/Publ-2258
Publ.-Id: 2258


EPR identification of a shallow donor state of cadmium in silicon

Näser, A.; Gehlhoff, W.; Overhof, H.; Yankov, R. A.
  • Lecture (Conference)
    8th Int. Conf. on Shallow Level Centres in Semiconductors, Montpellier, France, July 27-30, 1998

Permalink: https://www.hzdr.de/publications/Publ-2257
Publ.-Id: 2257


Wear properties of TiN coated cutting tools implanted with nitrogen ions

Narojczyk, J.; Piekoszewski, J.; Richter, E.; Werner, Z.
  • Lecture (Conference)
    ION´98, Kazimierz Dolny, Poland, June 16-19, 1998
  • Nukleonika Vol. 44, No. 21, p. 225-230, 1999

Permalink: https://www.hzdr.de/publications/Publ-2256
Publ.-Id: 2256


Beam line implantation of boron into hard metals

Mrotschek, I.; Günzel, R.; Matz, W.; Möller, W.; Anishchik, V.
  • Lecture (Conference)
    ION´98, Kazimierz Dolny, Poland, June 16-19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2255
Publ.-Id: 2255


Plasma-Immersions-Ionenimplantation

Möller, W.
  • Invited lecture (Conferences)
    Sommerschule "Nukleare Sonden und Ionenstrahlen", Bad Blankenburg, Sept., 1998 (invited lecture)
  • Lecture (Conference)
    VDE/ITG-Seminar "Teilchenstrahl- und Plasmatechnik", Helmsdorf b. Dresden, March 7, 1997

Permalink: https://www.hzdr.de/publications/Publ-2254
Publ.-Id: 2254


Schichtanalyse mit Ionenstrahlen

Möller, W.
  • Invited lecture (Conferences)
    W. E.-Heraeus-Ferienkurs, Chemnitz, Sept. 7, 1998 (invited lecture)

Permalink: https://www.hzdr.de/publications/Publ-2253
Publ.-Id: 2253


Plasma immersion ion implantation for diffusive treatment

Möller, W.
  • Invited lecture (Conferences)
    PSE'98, Garmisch-Partenkirchen, Sept. 14 - 18, 1998 (invited lecture)

Permalink: https://www.hzdr.de/publications/Publ-2252
Publ.-Id: 2252


Vorsorgeuntersuchung an historischem Glas

Mäder, M.; Neelmeijer, C.; Schreiner, M.
  • Lecture (Conference)
    Jahrestagung der GDCh, Archäometrie und Denkmalpflege, Würzburg, Sept. 23 -25, 1998
  • Lecture (Conference)
    Archäometrie und Denkmalpflege - Kurzberichte 1998, S. 149 - 151
  • Contribution to external collection
    Archäometrie und Denkmalpflege - Kurzberichte 1998, S. 149 - 151

Permalink: https://www.hzdr.de/publications/Publ-2251
Publ.-Id: 2251


Composition analysis of medieval glass using PIXE

Mäder, M.; Neelmeijer, C.; Schreiner, M.
  • Lecture (Conference)
    8th. Int. Conf. on PIXE and its Analytical applications, Lund, Sweden, June 14-18, 1998

Permalink: https://www.hzdr.de/publications/Publ-2250
Publ.-Id: 2250


Modeling high temperature co-implantation of N+-and Al+-ions into SiC: the effects of stress on the implant and damage distributions

Kulikov, A. V.; Trushin, Y. V.; Yankov, R. A.; Kreißig, U.; Fukarek, W.; Mücklich, A.; Skorupa, W.; Pezoldt, J.
  • Lecture (Conference)
    E-MRS´98, Strasbourg, June 16-19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2249
Publ.-Id: 2249


Theoretical and experimental studies of (AIN)(1-x)(SiC)xlayer structures formed by N+ and Al+ co-implantation 6H-SiC

Kulikov, A. V.; Pezoldt, J.; Rybin, P. V.; Skorupa, W.; Trushin, Y. V.; Yankov, R. A.
  • Lecture (Conference)
    Int.Workshop Nondestructive Testing and Computer Simulations in Science and Engineering, E 2, St. Petersburg, Russia, June 8 - 12, 1998

Permalink: https://www.hzdr.de/publications/Publ-2248
Publ.-Id: 2248


Dynamic in-situ diagnostics using ERD analysis

Kruse, O.; Grötzschel, R.
  • Lecture (Conference)
    ION'98, Kazimierz Dolny, Poland, June 16 - 19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2247
Publ.-Id: 2247


Tiefenselektive Phasenanalyse der Fe-Silizidbildung in Fe-ionenimplantiertem Si mittels DCEMS

Kruijer, S.; Walterfang, M.; Keune, W.; Dobler, M.; Reuther, H.
  • Lecture (Conference)
    DPG-Frühjahrstagung, Regensburg, March 23-27, 1998

Permalink: https://www.hzdr.de/publications/Publ-2246
Publ.-Id: 2246


Deposition of nanoscaled multilayer structures by ion beam assisted deposition

Kolitsch, A.; Wang, X.; Möller, W.
  • Lecture (Conference)
    5th DANFYSIK User Meeting, Brindisi, Italien, Sept. 1998

Permalink: https://www.hzdr.de/publications/Publ-2245
Publ.-Id: 2245


Development of a user data base system for ion implanter operation

Kolitsch, A.; Schöneich, J.
  • Lecture (Conference)
    5th DANFYSIK User Meeting, Brindisi, Italy, Sept. 1998

Permalink: https://www.hzdr.de/publications/Publ-2244
Publ.-Id: 2244


BN based multilayers by ion beam assisted deposition

Kolitsch, A.; Wang, X.; Möller, W.
  • Lecture (Conference)
    MRS Fall Meeting 1998, , Boston, USA, Dec. 1998

Permalink: https://www.hzdr.de/publications/Publ-2243
Publ.-Id: 2243


Defect agglomeration in ion implanted silicon away from RP

Kögler, R.; Yankov, R. A.; Skorupa, W.
  • Lecture (Conference)
    XIIth Int. Conf. Ion Implantation Technology (IIT´98), Kyoto, Japan, June 22-26, 1998

Permalink: https://www.hzdr.de/publications/Publ-2242
Publ.-Id: 2242


Technische Sitzungen der Sektion 2 (Thermo- und Fluiddynamik) der Jahrestagung Kerntechnik 1999

Knebel, J.; Grötzbach, G.; Lischke, W.; Rohde, U.; Schaffrath, A.
Auf der Jahrestagung Kerntechnik 1999 in Karlsruhe wurden in der Sektion 2 vier technische Sitzungen zu den Themenschwerpunkten: Stabilitätsuntersuchungen in Zweiphasenströmungen, DWR Integralexperimente, Experimente und Code-Validierung für WWER-Reaktoren, 3D Phänomene, Methoden und Rechnungen sowie 1 Postersession durchgeführt. Die einzelnen Beiträge werden in dem vorliegenden Artikel zusammengefaßt.


Keywords: Jahrestagung Kerntechnik, Thermo- und Fluiddynamik, Stabilitätsuntersuchungen, WWER-Reaktoren, 3D Phänomene
  • atomwirtschaft - atomtechnik 44 (1999), Heft 7, S. 419-423

Permalink: https://www.hzdr.de/publications/Publ-2241
Publ.-Id: 2241


Defects remaining in MeV-ion-implanted Si away from the peak of the nuclear energy deposition

Kögler, R.; Yankov, R. A.; Posselt, M.; Danilin, A.; Skorupa, W.
  • Lecture (Conference)
    E-MRS´98, Strasbourg, June 16-19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2240
Publ.-Id: 2240


Distribution of gettering centres at a buried amorphous layer in Si

Kögler, R.; Eichhorn, F.; Mücklich, A.; Skorupa, W.; Danilin, A.
  • Lecture (Conference)
    11th Int. Conf. on Ion Beam Modification of Materials, Amsterdam,The Netherlands, Aug. 31 - Sept. 4, 1998

Permalink: https://www.hzdr.de/publications/Publ-2239
Publ.-Id: 2239


Nanopatterning of thin CoSi2 layers by local oxidation

Kappius, L.; Antons, A.; Dolle, M.; Trinkaus, H.; Mesters, S.; Bochem, H.-P.; Mantl, S.; Heinig, K.-H.
  • Lecture (Conference)
    Spring Meeting, San Francisco, CA, USA, April 13-17, 1998

Permalink: https://www.hzdr.de/publications/Publ-2238
Publ.-Id: 2238


Hydrogen isotope inventories in plasma facing components of ASDEX UPGRADE

Krieger, K.; Maier, H. J.; Grambole, D.; Schleussner, D.; Franzen, P.
  • Lecture (Conference)
    17th IAEA Fusion Energy Conference, Yokohama, Japan, Oct. 19 -24, 1998

Permalink: https://www.hzdr.de/publications/Publ-2236
Publ.-Id: 2236


Lattice site location of foreign atoms measured by the GRID method

Karmann, A.; Wesch, W.; Börner, H. G.; Jentschel, M.; Heinig, K.-H.
  • Lecture (Conference)
    Int. Workshop on Applications of High-Precision gamma-Spectroscopy, University of Notre Dame, Notre Dame, IL, USA, July 1 - 3, 1998

Permalink: https://www.hzdr.de/publications/Publ-2234
Publ.-Id: 2234


The GRID technique: current status and new trends

Jentschel, M.; Börner, H. G.; Heinig, K.-H.; Doll, C.
  • Lecture (Conference)
    Int. Workshop on Applications of High-Precision (-Spectroscopy, University of Notre Dame, Notre Dame, IL, USA, July 1 - 3, 1998

Permalink: https://www.hzdr.de/publications/Publ-2233
Publ.-Id: 2233


Structural analysis of Si/Fe and Mo/Fe ion-beam mixed layers

Jagielski, J.; Kopcewicz, M.; Turos, A.; Eichhorn, F.
  • Lecture (Conference)
    11th. Int. Conf. on Ion Beam Modification of Materials, Amsterdam, The Netherlands, Aug. 31 - Sept. 4, 1998

Permalink: https://www.hzdr.de/publications/Publ-2232
Publ.-Id: 2232


Growth of ion-beam deposited a-C and a-C:H films: molecular-dynamics simulations using empirical many-body potential expressions

Jäger, H.-U.
  • Lecture (Conference)
    9th Europ. Conf. on Diamond, Diamond-Like Materials, Nitrides and Silicon Carbide, Crete, Greece, Sept. 13-18, 1998

Permalink: https://www.hzdr.de/publications/Publ-2231
Publ.-Id: 2231


Untersuchung historischer menschlicher Knochen mit Ionen-Mikrosonde

Jankuhn, S.; Butz, T.; Flagmeyer, R.-H.; Reinert, T.; Vogt, J.; Barckhausen, B.; Hammerl, J.; Protsch Von Zieten, R.; Grambole, D.; Herrmann, F.; Bethge, K.
  • Lecture (Conference)
    Frühjahrstagung der Fachverbände Chemische Physik, Kurzzeitphysik, Plasmaphysik, Polymerphysik, Bayreuth, March 9 - 13, 1998

Permalink: https://www.hzdr.de/publications/Publ-2230
Publ.-Id: 2230


Heavy-Ion induced damage of crystalline Ge and W at 0.5 to 8 MeV/u range

Huber, H.; Assmann, W.; Karamian, S. A.; Mieskes, H. D.; Nolte, H.; Gazis, E.; Kokkoris, M.; Kossionides, S.; Vlastou, R.; Grötzschel, R.; Mücklich, A.; Prusseit, W.
  • Lecture (Conference)
    Int. Conf. on Swift Heavy Ions in Matter ( SHIM-98), Berlin , May 1998
  • Nuclear Instruments and Methods in Physics Research B 146 (1998) 309-316

Downloads:

  • available with HZDR-Login

Permalink: https://www.hzdr.de/publications/Publ-2229
Publ.-Id: 2229


Pd diffusion in ZnTe and CdTe

Herrmann, S.; Mahnke, H.-E.; Spellmeyer, B.; Wienecke, M.; Reinhold, B.; Yankov, R. A.; Gumlich, H.-E.
  • Lecture (Conference)
    E-MRS´98, Strasbourg, June 16-19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2228
Publ.-Id: 2228


Effects of neutron irradiation on Fe-Cu model alloys and RPV steels probed by positron annihilation and hardness measurements

Hempel, A.; Saneyasu, M.; Tang, Z.; Hasegawa, M.; Brauer, G.; Plazaola, F.; Yamaguchi, S.
  • Lecture (Conference)
    19th Symp. on Effects of Radiation on Materials, Seattle/WA, June 16-18, 1998

Permalink: https://www.hzdr.de/publications/Publ-2227
Publ.-Id: 2227


A combination of computer simulation methods to predict quantum dot evolution during ion beam synthesis

Heinig, K.-H.; Strobel, M.
  • Lecture (Conference)
    4th Int. Conf. on Computer Simulation of Radiation Effects in Solids, Okayama, Japan, Sept.15 - 19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2226
Publ.-Id: 2226


Application of high-resolution gamma-spectroscopy (GRID method) in solid state physics

Heinig, K.-H.; Börner, H. G.; Jentschel, M.
  • Invited lecture (Conferences)
    Int. Workshop on Applications of High-Precision (-Spectroscopy, University of Notre Dame, Notre Dame, IL, July 1 - 3, 1998 (invited lecture)

Permalink: https://www.hzdr.de/publications/Publ-2225
Publ.-Id: 2225


Nanocrystal formation in SiO2: experiments, modelling and computer simulations

Heinig, K.-H.; Schmidt, B.; Markwitz, A.; Grötzschel, R.; Strobel, M.; von Borany, J.
  • Invited lecture (Conferences)
    E-MRS'98, Strasbourg, France, June 16-19, 1998 (invited lecture)

Permalink: https://www.hzdr.de/publications/Publ-2224
Publ.-Id: 2224


What is the physics behind the 3He-4He anomaly?

Neubert, W.; Botvina, A. S.
We show that coalescence of nucleons emitted prior to thermalization in highly excited nuclei can explain the anomaly of kinetic energies of helium fragments. This mechanism accomplishes the statistical approach to nuclear rections formerly used to describe intermediate mass fragment production.
Keywords: Intermediate energy hadron -nucleus and nucleus-nucleus interactions, helium isotopes
  • European Physical Journal A, Vol. 7, No. 1, pp.101-106

Downloads:

  • available with HZDR-Login

Permalink: https://www.hzdr.de/publications/Publ-2223
Publ.-Id: 2223


Phasenbildung und Standzeiterhöhung von HSS-Bohrern nach Plasma-Immersions-Implantation

Günzel, R.; Mändl, S.; Möller, W.; Hilke, R.; Knösel, E.; Künanz, K.
  • Lecture (Conference)
    Werkstoffwoche München, Oct. 12-15, 1998

Permalink: https://www.hzdr.de/publications/Publ-2222
Publ.-Id: 2222


Plasma-Immersions-Implantation – ein modernes Verfahren zur Modifizierung von Werkstückoberflächen

Günzel, R.; Brückner, J.; Richter, E.; Möller, W.
  • Lecture (Conference)
    Werkstoffwoche München, Oct. 12-15, 1998

Permalink: https://www.hzdr.de/publications/Publ-2221
Publ.-Id: 2221


Proton conducting Ba3Ca1.18Nb1.82O8.73/H2O: Pressure/compositions isotherms in terms of Fermi-Dirac-Statistics

Groß, B.; Marion, S.; Lind, K.; Hempelmann, R.; Grambole, D.; Herrmann, F.
  • Lecture (Conference)
    9th Int. Conf. on Solid State Protonic Conductors (SSSPC-9), Bled, Slovenia, Aug. 17 - 21, 1998

Permalink: https://www.hzdr.de/publications/Publ-2220
Publ.-Id: 2220


Fragmentation of Be induced by 1 GeV protons

Andronenko, L. N.; Andronenko, M. N.; Gusev, Y. I.; Kotov, A. A.; Neubert, W.; Petrov, G. E.; Seliverstov, D. M.; Strakovski, I. I.; Vaishnene, L. A.; Yatsoura, V. I.; Zalite, A. Y.
Fragment yields and energy spectra of He, Li and Be isotopes have been measured in p+9Be interactions at 1 GeV incident energy at 30 deg. and 126 deg. using a two-arm
spectrometer based on Bragg chambers. The obtained yield ratio of the low abundant
8He to 8Li in the spectator momentum range is compared with published data.
Keywords: fragmentation, cross section, isotope, proton
  • Other report
    Preprint NP-36-1999 Nr. 2321 , St.Petersburg Nuclear Physics Institute ,Gatchina, Russia

Permalink: https://www.hzdr.de/publications/Publ-2219
Publ.-Id: 2219


ERDA in-situ studies of atomic transport processes in various materials

Grötzschel, R.; Kreißig, U.; Kruse, O.; Grigull, S.; Parascandola, S.; Schmidt, B.
  • Invited lecture (Conferences)
    Int.Conf. on Swift Heavy Ions in Materials Engeneering and Characterization (SHIMEC-98), New Delhi, Oct. 19 - 22, 1998 (invited lecture)

Permalink: https://www.hzdr.de/publications/Publ-2218
Publ.-Id: 2218


Hydrogen and deuterium depth profiling in divertor tiles of a fusion experiment by micro-ERDA

Grambole, D.; Herrmann, F.; Behrisch, R.; Hauffe, W.
Depth profiling of light elements in the surface layer of solids by means of ERDA is limited to depths smaller than about 1 mu m. In order to measure the distributions
of hydrogen isotopes in larger depth regions such as needed for the divertor tiles from the tokamak fusion experiment ASDEX-Upgrade in the Max-Planck-Institut
fur Plasmaphysik, samples cut from the divertor tiles (about 0.6 mm tungsten on carbon) were bevelled at different angles by mechanical cutting and polishing or by
ion beam slope cutting. The mechanically cut slopes were additionally cleaned and polished by oblique incidence ion beam sputtering with target rotation to avoid
anisotropic etching.
The surface composition along the slope was measured by ERDA with the Rossendorf Nuclear Microprobe, A 10 MeV Si ion beam was focused to about 3 mu m
and scanned linearly across the slope. The hydrogen and deuterium recoils were detected by a surface barrier detector at a recoil angle of 30 degrees after passing
through a 10 mu m thick Al foil for stopping scattered primary ions. Deuterium was found at depths up to about 25 mu m and hydrogen up to 750 mu m on the
samples analysed.

Keywords: micro-ERDA, elastic recoil detection, depth profiling, hydrogen, deuterium
  • Lecture (Conference)
    6th Int. Conf. on Nucl. Microprobe Technology and Applications, Stellenbosch, South Africa, Oct. 11 - 16, 1998
  • Nuclear Instruments and Methods in Physics Research B 158(1999) 647-652

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Permalink: https://www.hzdr.de/publications/Publ-2217
Publ.-Id: 2217


Fragment production in proton interactions with light nuclei

Andronenko, L. N.; Andronenko, M. N.; Seliverstov, D. M.; Neubert, W.
Isotopic yield ratios were derived from double-differential cross sections measured in p+9Be and p+12C collisions at 1 GeV. Enhanced 9He yields were found compared to heavier target nuclei.
  • Contribution to proceedings
    7th International Conference on Clustering Aspects of Nuclear Structure and Dynamics. Rab, Croatia 1999

Permalink: https://www.hzdr.de/publications/Publ-2216
Publ.-Id: 2216


Ions and electron-irradiation induced deep levels in n-type and p-type 6H-SiC

Gong, M.; Beling, C. D.; Fung, S.; Brauer, G.; Wirth, H. D.; Skorupa, W.; You, Z.-P.
  • Lecture (Conference)
    MRS 1998 Spring Meeting, San Francisco, April 13-17, 1998

Permalink: https://www.hzdr.de/publications/Publ-2215
Publ.-Id: 2215


Si1-xGex structures fabricated by focused ion beam implantation

Ganetsos, T.; Tsamakis, D.; Panknin, D.; Mair, G. L. R.; Teichert, J.; Bischoff, L.; Aidinis, C.
  • Lecture (Conference)
    Conference in Low Temperature Devices, Toscane, Italy, June 1998
  • Contribution to external collection
    J. de Phys. IV 8 (1998) Pr3 - 109

Permalink: https://www.hzdr.de/publications/Publ-2214
Publ.-Id: 2214


Analysis of mechanisms in ECR-PECVD of BN films using in situ ellipsometry

Fukarek, W.; Möller, W.
  • Lecture (Conference)
    DACH - Kolloquium, Giengen, Oct. 6-8, 1998

Permalink: https://www.hzdr.de/publications/Publ-2213
Publ.-Id: 2213


Investigation of in-plane anisotropy of IBAD t-BN films

Fukarek, W.; Möller, W.
  • Lecture (Conference)
    DACH - Kolloquium, Giengen, Oct. 6-8, 1998

Permalink: https://www.hzdr.de/publications/Publ-2212
Publ.-Id: 2212


In plane anisotropy of IBAD t-BN films

Fukarek, W.; Möller, W.
  • Lecture (Conference)
    Gordon Research Conference on Plasma Processing Science, Tilton School, New Hampshire, USA, Aug. 9 - 14, 1998

Permalink: https://www.hzdr.de/publications/Publ-2211
Publ.-Id: 2211


Applications of infrared spectroscopy in materials research

Fukarek, W.
  • Invited lecture (Conferences)
    33. Holzhau-Meeting, March 30, April 3, 1998 (invited lecture)

Permalink: https://www.hzdr.de/publications/Publ-2210
Publ.-Id: 2210


A slow positron beam investigation of positron-defect interactions in single crystalline synthetic type IB diamonds and a natural type IIB diamond

Fischer, C. G.; Connell, S. H.; Coleman, P. G.; Anwand, W.; Malik, F.; Brauer, G.; Britton, D. T.; Sellschop, J. P. F.
  • Lecture (Conference)
    8th Int. Workshop on Slow Positron Beam Techniques for Solids and Surface (SLOPOS - 8), Cape Town, Sept. 6 - 12, 1998

Permalink: https://www.hzdr.de/publications/Publ-2209
Publ.-Id: 2209


Temperature effect on the morphology of helium bubble clusters in silicon

Fichtner, P.; Kaschny, J. R.; Yankov, R. A.; Mücklich, A.; Skorupa, W.
  • Lecture (Conference)
    14th Int. Conf. On Electron Microscopy, Cancum, Mexico, Aug. 31-Sept.5, 1998

Permalink: https://www.hzdr.de/publications/Publ-2208
Publ.-Id: 2208


The effects of annealing temperature on the formation of helium filled structures in silicon

Fichtner, P.; Kaschny, J. R.; Behar, M.; Yankov, R. A.; Mücklich, A.; Skorupa, W.
  • Lecture (Conference)
    11th Int. Conf. on Ion Beam Modification of Materials (IBMM'98), Amsterdam, Aug. 31 - Sept. 4, 1998

Permalink: https://www.hzdr.de/publications/Publ-2207
Publ.-Id: 2207


X-ray studies of silicon wafers implanted with MeV Ge++ions

Eichhorn, F.; Sass, J.; Mazur, K.
  • Lecture (Conference)
    4th Europ. Conf. on High Resolution X-ray Diffraction and Topography, Durham/GB, Sept. 9 - 12, 1998

Permalink: https://www.hzdr.de/publications/Publ-2206
Publ.-Id: 2206


CEMS-Eisendisilizide-Ionenstrahlverfahren

Dobler, M.
  • Lecture (Conference)
    IX. Mößbauerkolloquium Freiberg, Sept. 28-30, 1998

Permalink: https://www.hzdr.de/publications/Publ-2205
Publ.-Id: 2205


Untersuchung der Eisendisilizidbildung nach der Implantation von Fe in Si

Dobler, M.; Reuther, H.
  • Lecture (Conference)
    10. Arbeitstagung Angewandte Oberflächenanalytik AOFA 10, Kaiserslautern, Sept. 6-10, 1998

Permalink: https://www.hzdr.de/publications/Publ-2204
Publ.-Id: 2204


Ion bombardment stimulated phase formation in quartz glasses

Deshkovskaya, A. A.; Richter, E.
  • Lecture (Conference)
    11.th Int. Conf. on Ion Beam Modification of Materials, Amsterdam, Netherlands, Aug. 31 - Sept. 4, 1998

Permalink: https://www.hzdr.de/publications/Publ-2203
Publ.-Id: 2203


FTIR-Untersuchungen zur Komplexierung von Uran(VI) durch Huminsäuren

Heise, K.-H.; Nicolai, R.; Pompe, S.; Bubner, M.; Klöcking, R.; Bernhard, G.
Aufgrund der nur unvollkommen erfaßbaren, keineswegs stabilen chemischen Struktur und Funktionalität von Huminsäuren aus natürlichen Recourcen haben operationell mit HS übereinstimmende, synthetische Polymere als Modellhuminsäuren in vielen Bereichen der experimentellen Wissenschaften Eingang gefunden. Sie sind vor dem Hintergrund der Umweltkontaminationen durch toxische und radiotoxische Schwermetalle besonders für Bindungsstudien mit Metallionen interessant, da ihre Funktionalität durch Variation der Precursoren und der Synthesebedingungen in weiten Grenzen "eingestellt" werden kann.

Wir haben FTIR-spektrometrisch die festen Komplexe von Uran(VI) mit unterschiedlichen, gut charaktersierten Huminsäuren, zwei natürlichen Huminsäuren (Aldrich-Huminsäure und eine aus Moorwasser des "Kleinen Kranichsees" isolierte Huminsäure) sowie drei synthetischen Huminsäuren (zwei Melanoidinfraktionen sowie das Oxidationsprodukt von 3,4,5 Trihydroxybenzoesäure), verglichen. Trotz unterschiedlicher Herkunft der Huminsäuren, die in ihren FTIR-Spektren deutlich wird, scheint die Urananbindung an die Huminsäuren sehr ähnlich zu sein, was durch EXAFS-Untersuchungen an Uranylkomplexen natürlicher Huminsäuren und synthetischer Huminsäuren vom Melanoidintyp gestützt wird. Sowohl die asymmetrischen UO22+-Streckschwingungen im mittleren Infrarot, die wir zwischen 933.5 cm-1 und 923.1 cm-1 registrieren, als auch die UO22+-Deformationsschwingungen im fernen Infrarot zwischen 264.8 cm-1 und 260.6 cm-1 sind gut miteinander vergleichbar.
Die Einflußnahmen der strukturellen und funktionellen Unterschiede der Huminsäuren spiegeln sich in unterschiedlichen Verschiebungen der Uranylbanden wieder.

Keywords: FTIR-Spektroskopie; Huminsäuren, Uranyl-Huminsäurekomplexe
  • Lecture (Conference)
    Tagung der Deutschen Gesellschaft für Moor- und Torfkunde e.V.,Sektion IV - Physik, Chemie, Biologie Bad Elster, 07.-09.10.1999

Permalink: https://www.hzdr.de/publications/Publ-2202
Publ.-Id: 2202


Small Angle Scattering Study Concerning the Effect of Residual Elements on the Radiation Behaviour of Iron Alloys

Ulbricht, A.; Böhmert, J.; Große, M.; Strunz, P.
For better understanding of the influence of the deleterious elements on the neutron embrittlement of reactor pressure vessel steels, the microstructural evolution due to neutron irradiation was investigated by SANS experiments at ternary iron alloys with different contents of copper and phosphorus. In every case irradiation produced nanoscaled inhomogeneities. The volume fraction of the inhomogeneities incrases with the copper content but not with the phosphorus content. Surprisingly, the high-pure alloy shows a relatively high irradiation effect. The irradiation defects vary in type and kinetic of evolution for the different alloys.
Keywords: small angle scattering, radiation damage, neutron embrittlement, iron alloy
  • Lecture (Conference)
    ECNS'99, 2. European Conference on Neutron Scattering, Sept. 1999, Budapest, PHYSICA B 276-278 (2000) 936-938
  • Physica B 276-278 (2000) 936-938

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Permalink: https://www.hzdr.de/publications/Publ-2201
Publ.-Id: 2201


Einfluß der Ionenimplantation auf die Festigkeit von Quarzglas

Deshkovskaya, A. A.; Richter, E.
  • Lecture (Conference)
    28. Int. Konf. Physik der Wechselwirkung geladener Teilchen mit kristallinen Materialien, Moskau, May 25 - 27, 1998

Permalink: https://www.hzdr.de/publications/Publ-2200
Publ.-Id: 2200


New aspects in the design of silicon detectors for particle spectroscopy

von Borany, J.
  • Invited lecture (Conferences)
    1st Dresden Protection Symposium on "New Aspects of Radiation Measurements, Dosimetry and Alphaspectrometry", Dresden , March, 4-6, 1998 (invited lecture)

Permalink: https://www.hzdr.de/publications/Publ-2199
Publ.-Id: 2199


Computer simulations on thin film growth of superhard materials

Albe, K.
  • Invited lecture (Conferences)
    4th Int. Conf. on Computer Simulation of Radiation Effects in Solids, Okayama, Japan,Sept. 15-19, 1998 (invited lecture)

Permalink: https://www.hzdr.de/publications/Publ-2198
Publ.-Id: 2198


Non-local approach to modeling of nanocluster evolution in ion implanted layers

Borodin, V. A.; Heinig, K.-H.; Schmidt, B.
  • Lecture (Conference)
    E-MRS'98, Strasbourg, France, June 16-19, 1998

Permalink: https://www.hzdr.de/publications/Publ-2197
Publ.-Id: 2197


High Sensitive Thermal Sensors in Heat Spreading Diamond for Industrial Application

Bonhaus, J.; Harlander, T.; Borchert, D.; Ecke, G.; Fontaine, F.; Fahrner, W. R.
  • Lecture (Conference)
    IEEE Int. Symp. on Industrial Electronics (ISIE `98) , Pretoria, South Africa, July 7 - 10, 1998
  • Contribution to proceedings
    IEEE International Symposium on Industrial Electronics, proceedings vol. 1, 2 (1998) p. 157

Permalink: https://www.hzdr.de/publications/Publ-2195
Publ.-Id: 2195


Ion beam synthesis: a novel method of producing (SiC)1-x(AIN)x layers

Yankov, R. A.; Fukarek, W.; Hatzopoulos, N.; Voelskow, M.; Kreißig, U.; Brauer, G.; Anwand, W.; Heera, V.; Skorupa, W.
  • Mat. Sci. Forum 264-268 (1998) 753
  • Lecture (Conference)
    Int. Conf. on Silicon Carbide, III-Nitrides and Related Materials, Stockholm, Sweden, Aug. 31 - Sept. 5, 1997

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Publ.-Id: 2194


Investigation of ion-implantation induced damage in 6H-SiC by RBS/C and PAS

Wirth, H.; Anwand, W.; Brauer, G.; Voelskow, M.; Panknin, D.; Skorupa, W.; Coleman, P. G.
  • Mat. Sci. Forum 264-268 (1998) 729

Permalink: https://www.hzdr.de/publications/Publ-2193
Publ.-Id: 2193


GRID spectroscopy - a new nuclear method for lattice site localization of foreign atoms

Wesch, W.; Karmann, A.; Börner, H. G.; Jentschel, M.; Heinig, K.-H.
  • Nucl. Instr. Meth. B136-138 (1998) 494
  • Lecture (Conference)
    13th Int. Conf. on Ion Beam Analysis, Lissabon, Portugal, July 28 -August 2, 1997

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Publ.-Id: 2192


Cross-sectional micro-Raman Spectroscopy: a tool for structural investigations of thin polytypic SiC layers

Werninghaus, T.; Zahn, D.; Yankov, R. A.; Mücklich, A.; Pezoldt, J.
  • Mat. Sci. Forum 264-268 (1998) 661
  • Lecture (Conference)
    Int. Conf. on Silicon Carbide, III-Nitrides and Related Materials, Stockholm, Sweden, Aug. 31 - Sept. 5, 1997

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Publ.-Id: 2191


Ion bombardment induced relaxation of strained AlGaAs/GaAs heterostructures studied by the complementary use of RBS-channeling and X-ray synchrotron radiation

Turos, A.; Wierzchowski, W.; Wieteska, K.; Wendler, E.; Wesch, W.; Graeff, W.; Grötzschel, R.; Strupinski, W.
AlxGa1-xAs epitaxial layers grown on semi-insulating GaAs (SI-GaAs) substrates with x=0,25 and on in-doped GaAs with x= 0,45 were implanted at room temperature with 1.5 MeV Se ions to fluences ranging from 0,6x1014 to 4x1014 at/cm2 . Implanted crystals were analyzed with 1.8 MeV 4He ions using the RBS/channeling technique. In order to determine the defect structure and their depth profiles measurements were carried out at two different temperatures: 295 and 105 K. XRD with synchrotron beams was used for structural analysis. White beam topography was used to detect lattice deformation and strain relaxation. The lattice parameters were determined by rocking curve measurements with a monochromatic beam. For all samples a signifcant tetragonalization of the implanted region was observed. For the layers grown on SI-GaAs the lattice distortion increases with increasing ion dose until a critical lattice strain is attained. At that point the complete relaxation of the epitaxial layer occurs. In contrast, no relaxation was observed for layers grown on practically defect free indoped substrates. The mechanism of this transformation is attributed to the much higher dislocation density in the SI-GaAs substrate. Nucleation of new dislocations at defects produced by ion implantation and their interaction with threading dislocations leads to the strain relaxation by plastic
deformation of epitaxial layers.
  • Nucl. Instr. Meth. B136-138 ( 1998) 1062

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Publ.-Id: 2190


Conversion algorithm for ERDA multielement spectra and its application to thin-film problems

Spaeth, C.; Richter, F.; Grigull, S.; Kreißig, U.
A computer program was designed for the conversion of element-resolved energy spectra obtained from elastic recoil
detection analysis into composition depth profles. The algorithm is described in detail. An important feature of the
program is that the contribution of the analyzed elements to the stopping power is accounted for self-consistently. Extensions of the algorithm address the problem of the simultaneous analysis of recoil and forward scattering events, respectively, and of distortions in the recoil spectra due to the presence of target constituents with isotopic distributions that cannot be resolved when using standard ionization chambers for recoil detection. Two examples are given to demonstrate how one may benefit from the capabilities of the conversion program in the context of specifc thin film problems. The first example addresses compositional changes in Si3N4/C bilayers due to N-ion implantation, while the second one is dealing with the problem of impurity accumulation at the hexagonal-to-cubic phase boundary in BN films.
  • Nucl. Instr. Meth. B140 (1998) 243

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Publ.-Id: 2189


Content of hydrogen in boron-, carbon-, nitrogen-, oxygen-, fluorine- and neon-implanted titanium

Soltani-Farshi, M.; Baumann, H.; Rück, D.; Richter, E.; Kreißig, U.; Bethge, K.
  • Surf. Coat. Technol. 103-104 (1998) 299
  • Lecture (Conference)
    SMMIB 97, Gatlinburg, TE, USA, Sept. 1997

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Publ.-Id: 2188


Positron Studies of defects in nitrogen and carbon implanted titanium

Soltani-Farshi, M.; Baumann, H.; Anwand, W.; Brauer, G.; Coleman, P.; Richter, E.; Kreißig, U.; Bethge, K.
  • Contribution to external collection
    Mat. Res. Soc. Symp. Proc. 527 (1998) 81

Permalink: https://www.hzdr.de/publications/Publ-2187
Publ.-Id: 2187


Untersuchungen zum Korrosionsverhalten von Magnesium nach Ionenimplantation

Schneider, M.; Nocke, K.; Richter, E.
  • Galvanotechnik 80 (1998) 2524

Permalink: https://www.hzdr.de/publications/Publ-2186
Publ.-Id: 2186


Angle dependent Mössbauer spectroscopy on ß-FeSi2 single crystals

Reuther, H.; Behr, G.; Dobler, M.; Teresiak, A.
  • Hyperfine Interactions (c) 3 (1998) 385

Permalink: https://www.hzdr.de/publications/Publ-2185
Publ.-Id: 2185


Investigation of the calcium content in joint cartilage: Is it connected with (early arthrotic) changes in cartilage structure?

Reinert, T.; Butz, T.; Flagmeyer, R.-H.; Jankuhn, S.; Vogt, J.; Gründer, W.; Kanowski, M.; Wagner, M.; Werner, A.; Grambole, D.; Herrmann, F.
This paper describes investigations using the Particle Induced X-ray Emission method (PIXE) to evaluate the con-
centration of Ca together with that of other elements (S, Cl, and K) across the articular cartilage of domestic pigs in
order to verify a putative influence of calcium on the structural changes in early arthrotic stage, derived from NMR
microscopic imaging. The measurements were carried out with focused ion beams of a lateral resolution down to
20 lm. The main matrix components (C, N, O) were evaluated from proton backscattering spectra.
  • Nucl. Instr. Meth. B136-138 (1998) 936
  • Lecture (Conference)
    13th Int. Conf. on Ion Beam Analysis (IBA-13), Lisboa, Portugal, July 27 - Aug. 1, 1997

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Publ.-Id: 2184


Strong blue and violet light emission from silicon- and germanium-implanted silicon-dioxide films

Rebohle, L.; Tyschenko, I. E.; von Borany, J.; Schmidt, B.; Grötzschel, R.; Markwitz, A.; Yankov, R. A.; Fröb, H.; Skorupa, W.
  • Contribution to external collection
    Mat. Res. Soc. Symp. Proc. 486 (1998) 175

Permalink: https://www.hzdr.de/publications/Publ-2183
Publ.-Id: 2183


Strong blue and violet photo- and electroluminescence from Ge- and Si-implanted silicon dioxide

Rebohle, L.; von Borany, J.; Grötzschel, R.; Markwitz, A.; Schmidt, B.; Tyschenko, I. E.; Skorupa, W.; Fröb, H.; Leo, K.
The photoluminescence (PL) and electroluminescence (EL) properties of Ge-implanted SiO2 films thermally-grown on a Si substrate have been investigated and compared to those of Si-implanted SiO2 films. It is found that the blue-violet PL from both Si and Ge-rich layers reaches a maximum after annealing at 500°C for 30 min. The PL and EL from Ge-implanted SiO2 are distinctly higher than that from Si-implanted layers and well visible for the naked eye. The EL spectrum from the Ge-implanted oxide annealed at 1000 °C correlates very well with the PL one and shows a linear dependence on the injected current. The neutral oxygen vacancy is assumed to be responsible for the observed luminescence. In the case of Ge the microstructure after high temperature annealing is studied.
  • Phys. Stat. Sol. (a) 165 (1998) 31

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Publ.-Id: 2182


Studies of buried (SiC)1-x(AIN)x layers formed by co-implantation of N+ and Al+ ions into 6H-SiC

Pezoldt, J.; Yankov, R. A.; Voelskow, M.; Brauer, G.; Anwand, W.; Heera, V.; Skorupa, W.; Coleman, P.
  • Contribution to external collection
    Proc. 7th Int. Conf. Defect Recognition and Image Processing of Semicond. (DRIP VII) Inst. Phys. Conf. Ser. No. 160 (1998) IOP Publ. Ltd. Bristol, 1998, 335

Permalink: https://www.hzdr.de/publications/Publ-2177
Publ.-Id: 2177


Raman scattering analysis of defects in 6H-SiC induced by ion implantation

Perez-Rodriguez, A.; Gonzalez-Varona, O.; Calvo-Barrio, L.; Morante, J. R.; Wirth, H.; Panknin, D.; Skorupa, W.
  • Contribution to external collection
    Mat. Sci. Forum 258 - 263 (1998) 727

Permalink: https://www.hzdr.de/publications/Publ-2176
Publ.-Id: 2176


Hydrogen incorporation into Cu-III-VI 2 chalcopyrite semiconductors

Otte, K.; Lippold, G.; Grambole, D.; Herrmann, F.; Schlemm, H.; Schindler, A.; Bigl, F.
We implanted H3+ at 300 eV into Cu-chalcopyrite semiconductors at temperatures between 50 °C and 300 °C. The surface chemistry is similar to the previously reported behavior of CuInS2 implanted with a H2+, H+ low energy ion beam with respect to secondary phase etching. We also found an increase of radiative recombination (photoluminescence), which had been attributed to defect passivation and, hence, as an indicator of hydrogen incorporation. Under the 300 eV H3+ implantation conditions, however, we observed neither a hydrogen concentration in a few hundred nm surface range exceeding the NRA detection limit of about l x exp(19) cm-3 nor a pronounced stoichiometry variation in the ternary material, as proved by Raman measurements.
We conclude, therefore, that a 300 eV H3+ implantation introduces significantly less atomic hydrogen into the volume of the sample than previously reported for other beam compositions under similar temperature and current density conditions. This could be a result of the very low energy of less than 100 eV which can be expected for atomic H produced by dissociation of 300 eV H3+ at the surface, making the instant out-diffusion into the high vacuum of the implantation chamber a favored process.
  • Poster
    MRS-Spring Meeting, San Francisco, USA, April 13 - 17, 1998
  • Materials Research Society Symposium Proceedings 513(1998), 275

Permalink: https://www.hzdr.de/publications/Publ-2175
Publ.-Id: 2175


Fluorine enrichement on the surface of antarctic C30 and H chondrites by nuclear reaction analysis (NRA) and the sources of this terrestrial fluorine

Noll, K.; Döbeli, M.; Grambole, D.; Herrmann, F.; Krähenbühl, U.
  • Meteoritics and Planetary Science 33 (1998) Supplement, A 118

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Publ.-Id: 2174


Structure and magnetic properties in the low temperature annealing range of FeZrBCu-base alloys

Müller, M.; Herzer, G.; Mattern, N.; Grahl, H.; Schnell, B.; Reibold, M.; Reuther, H.
  • Contribution to external collection
    J. Phys. IV 8 (1998) Pr 2 - 187

Permalink: https://www.hzdr.de/publications/Publ-2173
Publ.-Id: 2173


Specific heat of single-, poly- and nanocrystalline diamond

Moelle, C.; Werner, M.; Szüczs, F.; Wittorf, D.; Sellschop, M.; von Borany, J.; Fecht, H.-J.; Johnston, C.
  • Diamond and Rel. Mat. 7 (1998) 499

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Publ.-Id: 2172


Measuring sputtering yields of high energy heavy ions on metals

Mieskes, H. D.; Assmann, W.; Brodale, M.; Dobler, M.; Glückler, H.; Hartung, P.; Stenzel, P.
For measuring sputtering yields with MeV heavy ions only low current densities can be used in order to avoid excessive target heating. Consequently self-cleaning of the target surface during the irradiation cannot be achieved and a contamination free surface has to be maintained by means of UHV conditions. A UHV-setup including a differential pumping system has been designed and operated at a vacuum of 10-10 mbar during experiments. Sputtered particles were collected on Si catchers and subsequently measured by two different surface analysis methods: Total Reflection X-Ray Fluorescence (TXRF), and Heavy Ion Rutherford Backscattering Spectrometry (HI-RBS). In-situ surface cleaning by 8 keV Xe ions as well as online monitoring by ERDA were found to be essential. With sufficient precautions on the surface conditions reproducible sputtering yields were obtained. First measurements for 230 MeV Au ions on Au, Zr, and Ti targets are presented.
  • Nucl. Instr. Meth. B 146 (1998) 162

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Permalink: https://www.hzdr.de/publications/Publ-2171
Publ.-Id: 2171


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