Kerr effect of ordered and disordered Fe1-xPtx(001) alloy films

被引：2

作者：

Hu, YM ^{[1
]}

Huang, JCA

Huang, SY

Wu, TH

机构：

[1] Nan Jeon Jr Coll Technol & Commerce, Dept Elect Engn, Tainan, Taiwan

[2] Natl Cheng Kung Univ, Dept Phys, Tainan 70101, Taiwan

[3] Natl Yunlin Univ Sci & Technol, Dept Humanities & Sci, Touliu, Taiwan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2001年 / 37卷 / 04期

关键词：

D O I：

10.1109/20.951190

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The (001) oriented Fe1-xPtx alloy films have been grown on Pt seeding layers on MgO (001) substrates by MBE. At growth temperature of 500 degreesC, rather ordered structures were formed for FePt, FePt2, and FePt3 films, which exhibit large perpendicular magnetic anisotropy and Kerr rotations. In contrast, Fe2Pt and Fe3Pt films were poorly ordered and did not display perpendicular magnetization for similar growth conditions. The optimal growth temperature of the FePt (x = 0.5) alloys occurs at about 500 degreesC, and the surface order-disorder transition occurs above 650 degreesC. We demonstrate that chemical ordering is important for perpendicular magnetic anisotropy and Kerr effects for Fe1-xPtx alloy films, which in turn depend strongly on the alloy composition and growth temperature.

引用

页码：2417 / 2419

页数：3

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