Tuning magnetic anisotropy in (001) oriented L10 (Fe1-xCux)55Pt45 films

Dustin A. Gilbert; Liang-Wei Wang; Timothy J. Klemmer; Jan-Ulrich Thiele; Chih-Huang Lai; Kai Liu

doi:10.1063/1.4799651

Tuning magnetic anisotropy in (001) oriented L10 (Fe1-xCux)55Pt45 films

Materials Science 2013-04-08 v1

Authors: Dustin A. Gilbert , Liang-Wei Wang , Timothy J. Klemmer , Jan-Ulrich Thiele , Chih-Huang Lai , Kai Liu

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Abstract

We have achieved (001) oriented L10 (Fe1-xCux)55Pt45 thin films, with magnetic anisotropy up to 3.6x10^7 erg/cm^3, using atomic-scale multilayer sputtering and post annealing at 400 {\deg}C for 10 seconds. 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 L10 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.

Keywords

magnetic anisotropy L10 phase FeCuPt thin films tetragonal distortion sputtering magnetic recording

Cite

@article{arxiv.1303.5208,
  title  = {Tuning magnetic anisotropy in (001) oriented L10 (Fe1-xCux)55Pt45 films},
  author = {Dustin A. Gilbert and Liang-Wei Wang and Timothy J. Klemmer and Jan-Ulrich Thiele and Chih-Huang Lai and Kai Liu},
  journal= {arXiv preprint arXiv:1303.5208},
  year   = {2013}
}

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16 pages, 6 figures, to appear in APL

Tuning magnetic anisotropy in (001) oriented L10 (Fe1-xCux)55Pt45 films

Abstract

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