Ferroelectric control of magnetism in BaTiO3/Fe heterostructures via interface strain coupling

被引：307

作者：

Sahoo, Sarbeswar ^{[1
]}

Polisetty, Srinivas

Duan, Chun-Gang

Jaswal, Sitaram S.

Tsymbal, Evgeny Y.

Binek, Christian

机构：

[1] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

[2] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.76.092108

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Reversible control of magnetism is reported for a Fe thin film in proximity of a BaTiO3 single crystal. Large magnetization changes emerge in response to ferroelectric switching and structural transitions of BaTiO3 controlled by applied electric fields and temperature, respectively. Interface strain coupling is the primary mechanism altering the induced magnetic anisotropy. As a result, coercivity changes up to 120% occur between the various structural states of BaTiO3. Up to 20% coercivity change is achieved via electrical control at room temperature. Our all solid state ferroelectric-ferromagnetic heterostructures open viable possibilities for technological applications.

引用

页数：4

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