NDLI: Magnetic properties and microstructure of FePt(MoC, C) granular films

Content Provider	IEEE Xplore Digital Library
Author	Tsai, J. Fu, S. Tseng, Y. Li, C.
Copyright Year	2015
Description	Author affiliation: Dept. of Mater. Sci. & Eng., Nat. Chung Hsing Univ., Taichung, Taiwan (Tsai, J.; Fu, S.; Tseng, Y.; Li, C.)
Abstract	High magnetocrystalline anisotropy (Ku) material was required for future heat assisted magnetic recording media. The ordered $L1_{0}$ FePt film can be prepared to have high [001] texture which shows high perpendicular magnetic anisotropy. Epitaxial growth of FePt films on MoC/CrRu/glass have been proved to promote chemical ordering and texturing. Dual-segregants such as transition metal-oxide with carbon have been used to obtain FePt granular structure and columnar grains. In this study, the magnetic properties and microstructure of FePt(MoC, C) films were discussed and the segregant materials were MoC and C. The $Mo_{40}C_{60}$ was co-sputtered with FePt and the carbon was diffused from the MoC intermediate layer. The MoC phase is formed at equal atomic ratio or higher C concentration. The $Mo_{50}C_{50}$ film with equal atomic ratio has been studied previously and chemical composition of $Mo_{40}C_{60}$ film was discussed in this study. When the atomic concentration of C is above 50%, the MoC and C phases are co-existed. The excess C was used as one of the segregant to diffuse up to separate FePt grains from intermediate layer.
Starting Page	1
Ending Page	1
File Size	432622
Page Count	1
File Format	PDF
e-ISBN	9781479973224
DOI	10.1109/INTMAG.2015.7157515
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-05-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Films Temperature measurement Microstructure Atomic layer deposition Magnetic hysteresis Perpendicular magnetic anisotropy Magnetic separation
Content Type	Text
Resource Type	Article

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