Chemical-order-induced magnetic exchange bias in epitaxial FePt3 films

被引：14

作者：

Lott, D. ^{[1
]}

Klose, F. ^{[2
,3
]}

Ambaye, H. ^{[3
]}

Mankey, G. J. ^{[4
]}

Mani, P. ^{[4
]}

Wolff, M. ^{[5
]}

Schreyer, A. ^{[1
]}

Christen, H. M. ^{[3
]}

Sales, B. C. ^{[3
]}

机构：

[1] GKSS Forschungszentrum Geesthacht GmbH, D-21502 Geesthacht, Germany

[2] Australian Nucl Sci & Technol Org, Menai, NSW 2234, Australia

[3] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[4] Univ Alabama, MINT Ctr, Tuscaloosa, AL 35487 USA

[5] Ruhr Univ Bochum, Dept Phys, D-44780 Bochum, Germany

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.77.132404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that magnetic exchange bias can be induced by means of chemical ordering. The effect was observed on epitaxial thin film layers of FePt3, a material which has the remarkable property that, depending on the degree of chemical order, a ferromagnetic and an antiferromagnetic magnetic state can coexist at the same temperature. We demonstrate that the observed exchange bias originates at the interfaces between these two different magnetic phases of FePt3.

引用

页数：4

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