Piezoelectric control of the magnetic anisotropy via interface strain coupling in a composite multiferroic structure

被引：19

作者：

Jia, Chenglong ^{[1
,2
]}

Sukhov, Alexander ^{[2
]}

Horley, Paul P. ^{[3
]}

Berakdar, Jamal ^{[2
]}

机构：

[1] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China

[2] Univ Halle Wittenberg, Inst Phys, D-06099 Halle, Saale, Germany

[3] Ctr Invest Mat Avanzados CIMAV SC, Chihuahua Monterrey 31109, Chihuahua, Mexico

来源：

EPL | 2012年 / 99卷 / 01期

基金：

中国国家自然科学基金;

关键词：

TEMPERATURE;

D O I：

10.1209/0295-5075/99/17004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate theoretically the magnetic dynamics in a ferroelectric/ferromagnetic heterostructure mediated by a strain-induced magnetoelectric interaction. The epitaxial strain involves a strong piezoelectricity and interfacial magnetoelastic coupling, the interplay of both gives rise to an electrically tunable uniaxial magnetic anisotropy. We predict an electric-field-induced magnetic switching in the plane perpendicular to the magneto-crystalline easy axis while the total magnetization remains stable. We trace this effect back to the ferroelectric control of the magnetic anisotropy. We also inspect the magnetic remanence and the electric coercivity and demonstrate a pronounced dynamic magnetic response to an electric field in a thin ferromagnetic layer. Copyright (C) EPLA, 2012

引用

页数：5