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Title: FePtC magnetic recording media with (200) textured MoC intermediate layer

Abstract

The FePt films with thickness of 4–10 nm were deposited on MoC/CrRu/glass at 425 °C by using magnetron sputtering. The Mo{sub 40}C{sub 60} target was used to form the MoC and C two phases after deposition. The MoC intermediate layer was epitaxially grown on the (200) textured CrRu seed layer at 425 °C and the MoC (200) diffraction peak was not clearly indexed below 10 nm but observed at 25 nm. Finally, the FePt film was prepared on (200) textured MoC at 425 °C and shown the strong (001) texture. Perpendicular anisotropy of 1.7 × 10{sup 7} erg/cm{sup 3} and out-of-plane coercivity of 7.5 kOe has been demonstrated in 10 nm thick FePt film. From microstructure, the FePt grains were distributed in- or between-islands like structure and further separated by excess carbon from MoC intermediate layer. Thinner FePt film was more separated by excess carbon and shown higher coercivity.

Authors:
; ; ;  [1]
  1. Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan (China)
Publication Date:
OSTI Identifier:
22410010
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; CHROMIUM; COERCIVE FORCE; CRYSTAL STRUCTURE; DEPOSITION; DIFFRACTION; EPITAXY; INTERFACES; INTERMETALLIC COMPOUNDS; IRON; LAYERS; MICROSTRUCTURE; MOLYBDENUM CARBIDES; PLATINUM; RUTHENIUM; SPUTTERING; TEXTURE; THIN FILMS

Citation Formats

Tsai, Jai-Lin, E-mail: tsaijl@dragon.nchu.edu.tw, Tseng, Yun-Ting, Li, Chia-Ru, and Fu, Sheng-Chun. FePtC magnetic recording media with (200) textured MoC intermediate layer. United States: N. p., 2015. Web. doi:10.1063/1.4906324.
Tsai, Jai-Lin, E-mail: tsaijl@dragon.nchu.edu.tw, Tseng, Yun-Ting, Li, Chia-Ru, & Fu, Sheng-Chun. FePtC magnetic recording media with (200) textured MoC intermediate layer. United States. doi:10.1063/1.4906324.
Tsai, Jai-Lin, E-mail: tsaijl@dragon.nchu.edu.tw, Tseng, Yun-Ting, Li, Chia-Ru, and Fu, Sheng-Chun. Thu . "FePtC magnetic recording media with (200) textured MoC intermediate layer". United States. doi:10.1063/1.4906324.
@article{osti_22410010,
title = {FePtC magnetic recording media with (200) textured MoC intermediate layer},
author = {Tsai, Jai-Lin, E-mail: tsaijl@dragon.nchu.edu.tw and Tseng, Yun-Ting and Li, Chia-Ru and Fu, Sheng-Chun},
abstractNote = {The FePt films with thickness of 4–10 nm were deposited on MoC/CrRu/glass at 425 °C by using magnetron sputtering. The Mo{sub 40}C{sub 60} target was used to form the MoC and C two phases after deposition. The MoC intermediate layer was epitaxially grown on the (200) textured CrRu seed layer at 425 °C and the MoC (200) diffraction peak was not clearly indexed below 10 nm but observed at 25 nm. Finally, the FePt film was prepared on (200) textured MoC at 425 °C and shown the strong (001) texture. Perpendicular anisotropy of 1.7 × 10{sup 7} erg/cm{sup 3} and out-of-plane coercivity of 7.5 kOe has been demonstrated in 10 nm thick FePt film. From microstructure, the FePt grains were distributed in- or between-islands like structure and further separated by excess carbon from MoC intermediate layer. Thinner FePt film was more separated by excess carbon and shown higher coercivity.},
doi = {10.1063/1.4906324},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 17,
volume = 117,
place = {United States},
year = {2015},
month = {5}
}