Large lattice mismatch induced perpendicular magnetic anisotropy and perpendicular exchange bias in CoPt/FeMn bilayer films

被引：0

作者：

PAN ChunJiao ^{[1
,2
]}

GAO TengHua ^{[2
,3
]}

ITOGAWA Nobuhide ^{[2
]}

HARUMOTO Takashi ^{[2
]}

ZHANG ZhengJun ^{[1
]}

NAKAMURA Yoshio ^{[2
]}

SHI Ji ^{[2
]}

机构：

[1] School of Materials Science and Engineering,Tsinghua University

[2] School of Materials and Chemical Technology,Tokyo Institute of Technology

[3] Department of Applied Physics and Physico-Informatics,Keio University

来源：

Science China(Technological Sciences) | 2019年 / 11期

关键词：

perpendicular magnetic anisotropy; perpendicular exchange bias; X-ray technique; magnetic materials;

D O I：

暂无

中图分类号：

TB383.2 [];

学科分类号：

070205 ; 080501 ; 1406 ;

摘要：

Perpendicular magnetic anisotropy and perpendicular exchange bias of CoPt/FeMn bilayers fabricated by dc magnetron sputtering were investigated in this work.Magnetic anisotropy,showing strong dependence on thickness of CoPt layer,changes from perpendicular magnetic anisotropy（PMA） into in-plane magnetic anisotropy when CoPt layer is thicker than 4.5 nm.The evolution of internal stress with thickness,from tensile to compressive,has been analyzed by sin2ψ method using an equal biaxial stress model.Distinctive perpendicular exchange bias（PEB） has been successfully established due to PMA of CoPt and out-ofplane spin component of 3 Q-spin-structured FeMn.FeMn thickness dependence of exchange bias field has been systematically investigated.

引用

页码：2009 / 2013

页数：5

共 4 条

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[3]

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