(001) oriented FePt-Ag composite nanogranular films on amorphous substrate

被引：45

作者：

Kang, K ^{[1
]}

Zhang, ZG ^{[1
]}

Papusoi, C ^{[1
]}

Suzuki, T ^{[1
]}

机构：

[1] Toyota Technol Inst, Informat Storage Mat Lab, Tempa Ku, Nagoya, Aichi 4688511, Japan

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 19期

关键词：

D O I：

10.1063/1.1574401

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By annealing the multilayer film with a stack structure of MgO 10 nm/Ag 20 nm/[FePt x nm/Ag 5 nm](5) at 550degreesC for 1 h, (001)-oriented L1(0) FePt nanograins with high perpendicular magnetic anisotropy are obtained on an amorphous substrate. The 20-nm Ag underlayer plays an important role in improving (001) texture of FePt and decreasing the fct FePt ordering temperature. The switching volume and uniaxial magnetic anisotropy constant K-u of FePt-Ag composite films with a controllable FePt grain size are obtained by fitting the coercivity dependence on magnetic field sweeping rate employing coherent rotation model, taking into account the easy axis distribution. (C) 2003 American Institute of Physics.

引用

页码：3284 / 3286

页数：3

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