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Magnetc Anisotropy of (110) Fe/Co SuperlatticesFe/Co 초격자의 자기이방성 연구

Other Titles
Fe/Co 초격자의 자기이방성 연구
Authors
V. A. Vas’koaMiyoung KimO. MryasovV. SapozhnikovM. K. MinorA. J. FreemanM. T. Kief
Issue Date
Aug-2006
Publisher
American Institute of Physics
Citation
Applied Physics Letters, v.89, no.9
Journal Title
Applied Physics Letters
Volume
89
Number
9
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/148590
DOI
10.1063/1.2337282
ISSN
0003-6951
1077-3118
Abstract
Magnetic anisotropy field of (110) Fe/Co superlattices was found to be as high as 1 T, with an in-plane easy axis. First principles calculations within the local spin density approximation show good agreement with the measurement. Lowering the symmetry by creating artificial superlattice structures leads to a significant increase in magnetic anisotropy energy as compared with any allotropic form of the elemental components and cubic FeCo. Large anisotropy is attributed to the cubic symmetry breaking due to the multilayer artificial atomic arrangement. Dependence of the anisotropy field on the superlattice period is supported by Monte Carlo film growth modeling. (c) 2006 American Institute of Physics.
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