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Title: Tuning magnetic anisotropy in (001) oriented L1{sub 0} (Fe{sub 1-x}Cu{sub x}){sub 55}Pt{sub 45} films

Abstract

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.

Authors:
;  [1]; ;  [2]; ;  [3]
  1. Physics Department, University of California, Davis, California 95616 (United States)
  2. Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan (China)
  3. Seagate Technology, Fremont, California 94538 (United States)
Publication Date:
OSTI Identifier:
22162828
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 102; Journal Issue: 13; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANISOTROPY; ANNEALING; COPPER COMPOUNDS; DEPOSITION; IRON COMPOUNDS; LAYERS; MAGNETIC PROPERTIES; MAGNETIZATION; MATERIALS; MICROSTRUCTURE; PLATINUM COMPOUNDS; SATURATION; SPUTTERING; SYNTHESIS; TERNARY ALLOY SYSTEMS; THIN FILMS

Citation Formats

Gilbert, Dustin A., Liu, Kai, Wang, Liang-Wei, Lai, Chih-Huang, Klemmer, Timothy J., and Thiele, Jan-Ulrich. Tuning magnetic anisotropy in (001) oriented L1{sub 0} (Fe{sub 1-x}Cu{sub x}){sub 55}Pt{sub 45} films. United States: N. p., 2013. Web. doi:10.1063/1.4799651.
Gilbert, Dustin A., Liu, Kai, Wang, Liang-Wei, Lai, Chih-Huang, Klemmer, Timothy J., & Thiele, Jan-Ulrich. Tuning magnetic anisotropy in (001) oriented L1{sub 0} (Fe{sub 1-x}Cu{sub x}){sub 55}Pt{sub 45} films. United States. https://doi.org/10.1063/1.4799651
Gilbert, Dustin A., Liu, Kai, Wang, Liang-Wei, Lai, Chih-Huang, Klemmer, Timothy J., and Thiele, Jan-Ulrich. Mon . "Tuning magnetic anisotropy in (001) oriented L1{sub 0} (Fe{sub 1-x}Cu{sub x}){sub 55}Pt{sub 45} films". United States. https://doi.org/10.1063/1.4799651.
@article{osti_22162828,
title = {Tuning magnetic anisotropy in (001) oriented L1{sub 0} (Fe{sub 1-x}Cu{sub x}){sub 55}Pt{sub 45} films},
author = {Gilbert, Dustin A. and Liu, Kai and Wang, Liang-Wei and Lai, Chih-Huang and Klemmer, Timothy J. and Thiele, Jan-Ulrich},
abstractNote = {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.},
doi = {10.1063/1.4799651},
url = {https://www.osti.gov/biblio/22162828}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 13,
volume = 102,
place = {United States},
year = {2013},
month = {4}
}