Promotion of L10 ordered phase transformation by the Ag top layer on FePt thin films

被引：89

作者：

Zhao, ZL

Ding, J

Inaba, K

Chen, JS

Wang, JP

机构：

[1] Data Storage Inst, Singapore 117608, Singapore

[2] Natl Univ Singapore, Dept Mat Sci, Singapore 119620, Singapore

[3] Rigaku Corp, Xray Res Lab, Tokyo 1968666, Japan

[4] Univ Minnesota, Ctr Micromagnet & Informat Technol, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 11期

关键词：

D O I：

10.1063/1.1611280

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of the deposition of an ultrathin Ag top layer on the structure and magnetic properties of FePt thin films has been investigated. Crystallographic ordering of the L1(0) face-centered-tetragonal (fct) FePt phase was significantly promoted when a Ag layer was deposited on top of the film. The increased fraction of hard magnetic L1(0) fct FePt phase led to a dramatic increase of coercivity from 1 to about 6.0 kOe. The deltaM curves suggested exchange decoupling of magnetic grains. A perpendicular FePt film with a coercivity of 5.0 kOe and remanent squareness of 0.98 was achieved with a CrRu underlayer and the Ag top layer. (C) 2003 American Institute of Physics.

引用

页码：2196 / 2198

页数：3

共 17 条

[1]

[Anonymous], ADV XRAY ANAL

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