Fine control of L10 ordering and grain growth kinetics by C doping in FePt films

被引：46

作者：

Ko, HS ^{[1
]}

Perumal, A

Shin, SC

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

[2] Korea Adv Inst Sci & Technol, Ctr Nanospin Spintron Mat, Taejon 305701, South Korea

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 14期

关键词：

D O I：

10.1063/1.1564865

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present the results on highly anisotropic oriented face-centered-tetragonal ordered equiatomic FePt thin films embedded in a C matrix prepared by cosputtering technique on MgO (100) substrates at 400 degreesC. We have found that doping of C in FePt alloy films is an effective and appropriate way to control the L1(0) ordering and growth of grain size down to 4 nm. Room-temperature magnetic measurements reveal that perpendicular magnetic anisotropy exists for these films with C concentration up to 25 vol %. These films are very promising and the results are of relevance for ultrahigh-density magnetic recording media. (C) 2003 American Institute of Physics.

引用

页码：2311 / 2313

页数：3

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