1. On defects role in enhanced perpendicular magnetic anisotropy in Pt/Co/Pt, induced by ion irradiation
- Author
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Jakubowski, M. M., (0000-0001-7933-7295) Liedke, M. O., Butterling, M., Dynowska, E., Sveklo, I., Milińska, E., Kurant, Z., Böttger, R., Borany, J., Maziewski, A., Wagner, A., Wawro, A., Jakubowski, M. M., (0000-0001-7933-7295) Liedke, M. O., Butterling, M., Dynowska, E., Sveklo, I., Milińska, E., Kurant, Z., Böttger, R., Borany, J., Maziewski, A., Wagner, A., and 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.
- Published
- 2019