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1 PublicationOn defects role in enhanced perpendicular magnetic anisotropy in Pt/Co/Pt, induced by ion irradiation
Jakubowski, M. M.; Liedke, M. O.; Butterling, M.; Dynowska, E.; Sveklo, I.; Milińska, E.; Kurant, Z.; Böttger, R.; von Borany, J.; Maziewski, A.; Wagner, A.; Wawro, A.
Abstract
Modifications of magnetic and magneto-optical properties of Pt/Co(dCo)/Pt upon Ar+ irradiation (with energy 1.2, 5 and 30 keV) and fluence, F at the range from 2e13-2e16 Ar+/cm^2) were studied. Two ‘branches’ of increased perpendicular magnetic anisotropy (PMA) and enhanced magneto-optical response are found on two-dimensional (dCo, F) diagrams. The difference in F between ‘branches’ is driven by ion energy. Structural features correlated with magnetic properties have been analysed thoroughly by X-ray diffraction, Rutherford backscattering spectrometry and positron annihilation spectroscopy. Experimental results are in agreement with TRIDYN numerical calculations of irradiation-induced layers intermixing. Our work discusses particularly structural factors related to crystal lattice defects and strain, created and modified by irradiation, co-responsible for the increase in PMA.
Keywords: thin films; magnetic measurements; vacancy formation; Rutherford backscattering, RBS; atom, molecule, and ion impact; positron spectroscopies
Involved research facilities
- Radiation Source ELBE DOI: 10.17815/jlsrf-2-58
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
- P-ELBE
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- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 28819) publication
- DOI: 10.17815/jlsrf-2-58 is cited by this (Id 28819) publication
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Journal of Physics: Condensed Matter 31(2019), 185801
DOI: 10.1088/1361-648X/ab0351
Cited 8 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-28819