Interface magnetism


Dr. Kay Potzger
Project group leader
Tel.: 0351-260-3244, 2411

Group members

Dr. Rantej Bali

Shadab Anwar

Serhii Sorokin

Former group members

Hamza Cansever

Alexander Schmeink

Jonathan Ehrler
Thu Trang Trinh

Dr. Maciej Oskar Liedke
Dr. Anna Semisalova
Naren Srinivasan

Alireza Heidarian
Julius Beck
Alevtina Smekhova

Oguz Yildirim
Steffen Cornelius
Camilo Otalora

Daniel Blaschke
Maik Butterling
Nico Spahn
Falk Meutzner
Armin Haase

Tim Andrae
Kerstin Bernert
Nikolas Blum
Marcel Höwler

Tina Nestler
Julia Osten
Artem Shalimov
Georg Talut
Gufei Zhang
Shengqiang Zhou


-FWIN-G -meeting thursdays at 12:45


PREM (Preisach simulations)

MBE sample sheet

Further MBE instructions: O:\Labs\MBE_712_108_108a


- Magnetic materials, TUBA Freiberg, summer semester

Interface magnetism (FWIN-G)

Our group is investigating magnetic effects at interfaces between different structures. Those structures are created by means of thin film deposition and ion irradiation. One example are metallic multilayers where the magnetic properties are locally taylored by ion irradiation or the magnetic doping of non-magnetic materials. The interface-magnetism-group is working in different projects which are partially funded by external sources (see below).


Own projects

Finished projects

  • Dynamic magnetic properties of FeRh thin structures (in-house)
  • MACHO (Magnetic anisotropies in Cobalt heterostructures induced by oxidation - with IFJ Cracow)
  • MEMRIOX (Memristive oxides - HGF Virtual Institute VH-VI-422)
  • DETI.2 (Defects in magnetic TiO2 - HRJRG-314)
  • Spin tranfer torque effects in metallic multilayers and tunnel structures (BMBF, FKZ 13N10144)
  • Embedded magnetic nanoparticles (DFG, PO1275/2-1)
  • Magnetic clusters in semiconductors
  • Magnetic multilayers


Are you interested in taking part in our scientific work, e.g. as a students lab assistant of for a Bachelor/Master thesis? Please also contact directly.

Or maybe you are generally interested in


Tuning of the Dzyaloshinskii-Moriya interaction by He+ion irradiation

Nembach, H. T.; Jué, E.; Potzger, K.; Faßbender, J.; Silva, T. J.; Shaw, J. M.



Vacancy kinetics during magnetic phase transitions

Liedke, M. O.; Butterling, M.; Ehrler, J.; Eggert, B.; Griggs, W.; Anwar, M. S.; Bali, R.; Thomson, T.; Hirschmann, E.; Elsherif, A. G. A.; Wagner, A.

Related publications

  • Lecture (Conference) (Online presentation)
    Int. Workshop on Positron Studies of Defects-2021, 01.-05.03.2021, Mumbai, India

Effects of hydrogen absorption on magnetism in Ni80Fe20/Y/Pd trilayers

Weiss, C.; Hübner, R.; Saunders, M.; Semisalova, A.; Ehrler, J.; Schmidt, N.; Seyd, J.; Albrecht, M.; Anwar, S.; Lindner, J.; Potzger, K.; Kostylev, M.

Evolution of the magnetic hyperfine field profiles in ion-irradiated Fe60Al40 film measured by nuclear resonant reflectivity

Andreeva, M.; Smekhova, A.; Baulin, R.; Repchenko, Y.; Bali, R.; Schmitz-Antoniak, C.; Wende, H.; Sergueev, I.; Schlage, K.; Wille, H. C.


Spin polarization and magnetotransport properties of systematically disordered Fe60Al40 thin films

Borisov, K.; Ehrler, J.; Fowley, C.; Eggert, B.; Wende, H.; Cornelius, S.; Potzger, K.; Lindner, J.; Faßbender, J.; Bali, R.; Stamenov, P.



Depth selective magnetic phase coexistence in FeRh thin films

Griggs, W.; Eggert, B.; Liedke, M. O.; Butterling, M.; Wagner, A.; Kentsch, U.; Hirschmann, E.; Grimes, M.; Caruana, A. J.; Kinane, C.; Wende, H.; Bali, R.; Thomson, T.

Related publications

Investigation of Mild Steel Corrosion in the Cement Production Associated with the Usage of Secondary Fuels

Thieme, M.; Bergmann, U.; Kiesewetter, A.; Wehry, T.; Potzger, K.; Zarzycki, A.; Marszalek, M.; Worch, H.

Ferromagnetism in B2-Ordered Alloys Induced via Lattice Defects

Bali, R.

  • Book chapter
    Francis Chi-Chung Ling, Shengqiang Zhou, Andrej Kuznetsov: Defects in Functional Materials, Hong Kong: World Scientific Publishing Co Pte Ltd, 2020, 978-981-120-316-9, 201-239
    DOI: 10.1142/11352
    Cited 1 times in Scopus

Magnetic response of FeRh to static and dynamic disorder

Eggert, B.; Schmeink, A.; Lill, J.; Liedke, M. O.; Kentsch, U.; Butterling, M.; Wagner, A.; Pascarelli, S.; Potzger, K.; Lindner, J.; Thomson, T.; Fassbender, J.; Ollefs, K.; Keune, W.; Bali, R.; Wende, H.

Ionenstrahlen erzeugen periodische, magnetische Domänenstrukturen

Nord, M.; Mcgrouther, D.; Potzger, K.; Bali, R.

  • Physik in unserer Zeit 51(2020)2, 58-59

Magneto-structural correlations in a systematically disordered B2 lattice

Ehrler, J.; Sanyal, B.; Grenzer, J.; Zhou, S.; Böttger, R.; Wende, H.; Lindner, J.; Faßbender, J.; Leyens, C.; Potzger, K.; Bali, R.


Accelerated magnetic re-ordering in Ne+ irradiated FeAl thin films

Liedke, M. O.; Ehrler, J.; Bali, R.; Butterling, M.; Hirschmann, E.; Wagner, A.; Cizek, J.

  • Lecture (Conference)
    DPG-Frühjahrstagung — Regensburg, 31.03.2019, Regensburg, Deutschland

Tailoring magnetic nanostructures with a He-Ne ion microscope

Hlawacek, G.; Bali, R.; Lenz, K.; Samad, F.; Peter, D.

  • Lecture (Conference)
    Spins, Waves and Interactions 2019, 5.9.2019, Greifswald, Deutschland

Microscopic insights into the disorder induced phase transition in FeRh thin films

Eggert, B.; Schmeink, A.; Potzger, K.; Lindner, J.; Fassbender, J.; Ollefs, K.; Keune, W.; Bali, R.; Wende, H.

  • Lecture (Conference)
    DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM), 31.03.-05.04.2019, Regensburg, Deutschland

Ferromagnetic writing on B2 Fe50Rh50 thin films using ultra-short laser pulses

Schmeink, A. H.; Eggert, B.; Ehrler, J.; Mawass, M.; Hübner, R.; Potzger, K.; Lindner, J.; Fassbender, J.; Kronast, F.; Wende, H.; Bali, R.

  • Poster
    DPG Frühjahrstagung Regensburg, 31.03.-05.04.2019, Regensburg, Deutschland

Nanoscale Ferromagnetism in Alloy Thin Film via Lattice Disordering

Bali, R.; Schmeink, A. H.; Eggert, B.; Ehrler, J.; Liersch, V.; Semisalova, A.; Hlawacek, G.; Potzger, K.; Faßbender, J.; Thomson, T.; Wende, H.; Lindner, J.

  • Invited lecture (Conferences)
    6th International Conference from Nanoparticles and Nanomaterials to Nanodevices and Nanosystems (6th IC4N), 30.06.-03.07.2019, Corfu, Greece
  • Invited lecture (Conferences)
    Symposium „Spins, Waves and Interactions“, 03.-05.09.2019, Greifswald, Deutschland

Strain Anisotropy and Magnetic Domains in Embedded Nanomagnets

Nord, M.; Semisalova, A.; Kákay, A.; Hlawacek, G.; Maclaren, I.; Liersch, V.; Volkov, O.; Makarov, D.; Paterson, G. W.; Potzger, K.; Lindner, J.; Faßbender, J.; Mcgrouther, D.; Bali, R.

Tuning Ferromagnetic Resonance via Disorder/Order Interfaces

Schneider, T.; Lenz, K.; Semisalova, A.; Gollwitzer, J.; Heitler-Klevans, J.; Potzger, K.; Fassbender, J.; Lindner, J.; Bali, R.


Ion induced ferromagnetism combined with self-assembly for large area magnetic modulation of thin films

Krupinski, M.; Bali, R.; Mitin, D.; Sobieszczyk, P.; Gregor-Pawlowski, J.; Zarzycki, A.; Böttger, R.; Albrecht, M.; Potzger, K.; Marszałek, M.

The role of open-volume defects in the annihilation of antisites in a B2-ordered alloy

Ehrler, J.; Liedke, M. O.; Cizek, J.; Boucher, R.; Butterling, M.; Zhou, S.; Böttger, R.; Hirschmann, E.; Trinh, T. T.; Wagner, A.; Lindner, J.; Fassbender, J.; Leyens, C.; Potzger, K.; Bali, R.


Structure-property relationship of Co2MnSi thin films in response to He+-irradiation

Hammerath, F.; Bali, R.; Hübner, R.; Brandt, M. R. D.; Rodan, S.; Potzger, K.; Böttger, R.; Sakuraba, Y.; Büchner, B.; Wurmehl, S.

  • Open Access Logo Scientific Reports 9(2019), 2766
    DOI: 10.1038/s41598-019-39435-4
    Cited 4 times in Scopus
  • Lecture (Conference)
    DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM) gemeinsam mit der European Physical Society (CMD), 11.-16.03.2018, Berlin, Deutschland


Vacancy-mediated magnetic phase-transitions

Liedke, M. O.; Butterling, M.; Quintana, A.; Menéndez, E.; Ehrler, J.; Bali, R.; Hirschmann, E.; Sireus, V.; Nogués, J.; Sort, J.; Wagner, A.

  • Invited lecture (Conferences)
    18th International Conference on Positron Annihilation (ICPA-18), 19.08.2018, Orlando, USA

Magnetic ordering and open volume defects – phase transitions in ion irradiated Fe60Al40 thin films

Liedke, M. O.; Ehrler, J.; Bali, R.; Butterling, M.; Hirschmann, E.; Wagner, A.

  • Lecture (Conference)
    9th Joint European Magnetic Symposia (JEMS-9), 03.09.2018, Mainz, Deutschland

Investigation of the ion induced magnetization in FeRh

Semisalova, A.; Barton, C.; Bali, R.; Böttger, R.; Thomson, T.; Potzger, K.; Lenz, K.; Lindner, J.; Fassbender, J.

  • Lecture (Conference)
    21st International Conference on Ion Beam Modification of Materials IBMM 2018, 24.-29.06.2018, San Antonio, Texas, USA

Magneto-transport measurements in para- and ferromagnetic Fe60Al40 wires

Liersch, V.; Schmeink, A.; Eggert, B.; Warnatz, T.; Wintz, S.; Ehrler, J.; Böttger, R.; Hlawacek, G.; Potzger, K.; Lindner, J.; Faßbender, J.; Wende, H.; Bali, R.

  • Poster
    DPG-Frühjahrstagung 2018, 11.-16.03.2018, Berlin, Germany

Hydrogen storage in Mg2FeSi alloy thin films depending on the Fe-to-Si ratio measured by conversion electron Mössbauer spectroscopy

Trinh, T. T.; Asano, K.; Heller, R.; Reuther, H.; Grenzer, J.; Schreuders, H.; Dam, B.; Potzger, K.

FMR Linewidth Variation with Distance from Lateral Antiferromagnet/Ferromagnet Interfaces

Usami, T.; Bali, R.; Lindner, J.; Itoh, M.; Taniyama, T.

  • Poster
    Magnetics and Optics Research International Symposium 2018, 07.-10.01.2018, New York, United States of America

Nematicity of correlated systems driven by anisotropic chemical phase separation

Yuan, Y.; Hübner, R.; Birowska, M.; Xu, C.; Wang, M.; Prucnal, S.; Jakiela, R.; Potzger, K.; Böttger, R.; Facsko, S.; Majewski, J. A.; Helm, M.; Sawicki, M.; Zhou, S.; Dietl, T.


Local probe of irradiation induced structural changes and orbital magnetism in Fe60Al40 thin films via order-disorder phase transition

La Torre, E.; Smekhova, A.; Schmitz-Antoniak, C.; Ollefs, K.; Eggert, B.; Cöster, B.; Walecki, D.; Wilhelm, F.; Rogalev, A.; Lindner, J.; Bali, R.; Banerjee, R.; Sanyal, B.; Wende, H.


Laser schaltet Magnet an und aus

Ehrler, J.; Kronast, F.; Zhigilei, L. V.; Bali, R.

Related publications

  • Physik in unserer Zeit (2018)

Positron Studies with a Superconducting Electron Accelerator

Wagner, A.; Butterling, M.; Hirschmann, E.; Krause-Rehberg, R.; Liedke, M. O.; Potzger, K.

  • Invited lecture (Conferences)
    18th International Conference on Positron Annihilation, 18.-24.08.2018, Orlando, FL, USA

Laser-Rewriteable Ferromagnetism at Thin Film Surfaces

Ehrler, J.; He, M.; Shugaev, M. V.; Polushkin, N. I.; Wintz, S.; Liersch, V.; Cornelius, S.; Hübner, R.; Potzger, K.; Lindner, J.; Fassbender, J.; Ünal, A. A.; Valencia, S.; Kronast, F.; Zhigilei, L. V.; Bali, R.

Related publications


Application of Gas Field Ion Source to Patterning Nanoscale Magnetic Structures

Bali, R.; Schmeink, A.; Hlawacek, G.; Lindner, J.; Faßbender, J.

  • Lecture (Conference)
    2nd international HeFIB conference on Helium and emerging Focused Ion Beams, 11.-13.06.2018, Dresden, Deutschland

Large scale arrays of Co/Pd and Fe60Al40 nanomagnets with tunable magnetic properties for recording and magnonic applications

Krupinski, M.; Mitin, D.; Sobieszczyk, P.; Bali, R.; Zarzycki, A.; Potzger, K.; Albrecht, M.; Marszalek, M.

  • Lecture (Conference)
    XIV International Conference on Nanostructured Materials (Nano 2018), 24.-29.06.2018, Hong Kong, Hong Kong

Imaging Structure and Magnetisation in New Ways Using 4D STEM

Maclaren, I.; Nord, M.; Conner, S.; Mcgrouther, D.; Allen, C. S.; Danaie, M.; Kirkland, A. I.; Bali, R.; Hlawacek, G.; Lindner, J.; Faßbender, J.

  • Invited lecture (Conferences)
    Microscopy & Microanalysis 2018 Meeting, 05.-09.08.2018, Baltimore MD, USA

Nanoscale magnetic and structural characterization of Ne+ irradiated FeAl thin films using pixelated STEM

Nord, M.; Bali, R.; Hlawacek, G.; Lindner, J.; Fassbender, J.; Maclaren, I.; Mcgrouther, D.

  • Lecture (Conference)
    19th International Microscopy Congress (IMC19), 09.-14.09.2018, Sydney, Australia

Magneto-structural correlations in Fe60Al40 thin films

Ehrler, J.; Potzger, K.; Grenzer, J.; Zhou, S.; Böttger, R.; Bali, R.

  • Lecture (Conference)
    Seminar der Professur Werkstofftechnik, 12.-13.01.2018, Meißen, Germany

Molecular encapsulator on the surface of magnetic nanoparticles. Controlled drug release from calcium Ferrite/Cyclodextrin–tethered polymer hybrid

Ramasamy, S.; Reuther, H.; Adyanpuram, M. N. M. S.; Enoch, I. V. M. V.; Potzger, K.; Samathanam, B.


Positron Annihilation Studies using a Superconducting Electron LINAC

Wagner, A.; Butterling, M.; Hirschmann, E.; Krause-Rehberg, R.; Liedke, M. O.; Potzger, K.

  • Invited lecture (Conferences)
    International Workshop on Physics with Positrons at Jefferson Lab, 12.-15.09.2017, Newport News, VA, USA
  • Invited lecture (Conferences)
    International Workshop on Positron Studies of Defects 2017 (PSD-17), 03.-08.09.2017, Dresden, Deutschland
  • Open Access Logo AIP Conference Proceedings 1970(2018), 040003
    DOI: 10.1063/1.5040215
    Cited 42 times in Scopus
  • Lecture (Conference)
    Frühjahrstagung der Deutschen Physikalischen Gesellschaft, 12.-16.03.2018, Berlin, Deutschland


Ferromagnetic resonance in Ferh thin films near the antiferromagnetic-ferromagnetic phase transition

Semisalova, A.; Stienen, S.; Barton, C. W.; Boettger, R.; Bali, R.; Thomson, T.; Farle, M.; Fassbender, J.; Potzger, K.; Lindner, J.

  • Lecture (Conference)
    Euro-Asian Symposium “Trends in Magnetism” (EASTMAG-2016), 15.-19.08.2016, Krasnoyarsk, Russia
  • Invited lecture (Conferences)
    AMP 2017, Interdisciplinary workshop “Acousto-magneto-plasmonics meets quantum optics”, 28.-30.06.2017, Versailles, France
  • Invited lecture (Conferences)
    International School-Conference Spinus 2018, 01.-06.04.2018, Saint Petersburg, Russia

Evolution of the local environment and magnetism in Fe60Al40 films under Ne+ irradiation

Smekhova, A.; La Torre, E.; Eggert, B.; Cöster, B.; Szyjka, T.; Walecki, D.; Salamon, S.; Ollefs, K.; Bali, R.; Lindner, J.; Rogalev, A.; Weschke, E.; Banerjee, R.; Sanyal, B.; Schmitz-Antoniak, C.; Wende, H.

  • Lecture (Conference)
    DPG-Frühjahrstagung, 19.-24.03.2017, Dresden, Germany
  • Lecture (Conference)
    DPG-Tagungen 2018, 12.-16.03.2018, Berlin, Deutschland
  • Lecture (Conference)
    9th Joint European Magnetic Symposia (JEMS) Conference 2018, 03.-07.09.2018, Mainz, Deutschland
  • Contribution to proceedings
    2018 IEEE International Magnetic Conference (INTERMAG), 23.-27.04.2018, Singapore, Singapore
    Proceedings of the 2018 IEEE International Magnetic Conference (INTERMAG): IEEE
    DOI: 10.1109/INTMAG.2018.8508108

Update 18.11.2018