Tuning magnetic anisotropy in (001) oriented L1{sub 0} (Fe{sub 1-x}Cu{sub x}){sub 55}Pt{sub 45} films
- Physics Department, University of California, Davis, California 95616 (United States)
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan (China)
- Seagate Technology, Fremont, California 94538 (United States)
We have achieved (001) oriented L1{sub 0} (Fe{sub 1-x}Cu{sub x}){sub 55}Pt{sub 45} thin films, with magnetic anisotropy up to 3.6 Multiplication-Sign 10{sup 7} erg/cm{sup 3}, using atomic-scale multilayer sputtering and post annealing at 400 Degree-Sign C for 10 s. By fixing the Pt concentration, structure and magnetic properties are systematically tuned by the Cu addition. Increasing Cu content results in an increase in the tetragonal distortion of the L1{sub 0} phase, significant changes to the film microstructure, and lowering of the saturation magnetization and anisotropy. The relatively convenient synthesis conditions, along with the tunable magnetic properties, make such materials highly desirable for future magnetic recording technologies.
- OSTI ID:
- 22162828
- Journal Information:
- Applied Physics Letters, Vol. 102, Issue 13; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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