Electrically controlled magnetization switching in a multiferroic heterostructure

被引：71

作者：

Chen, Yajie ^{[1
]}

Fitchorov, Trifon ^{[1
]}

Vittoria, Carmine ^{[1
]}

Harris, V. G. ^{[1
]}

机构：

[1] Northeastern Univ, Dept Elect & Comp Engn, Ctr Microwave Magnet Mat & Integrated Circuits, Boston, MA 02115 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.3475417

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A demonstration of magnetization reversal via the application of electric field across a multiferroic heterostructure, consisting of a FeCoV ribbon bonded to a lead magnesium niobate-lead titanate crystal, is presented. The magnetization switching occurs by an abrupt change in magnetization near ferromagnetic coercivity, coinciding with an electrical field-induced magnetic anisotropy field. Experiments reveal a converse magnetoelectric coupling of alpha=mu(0) (dM/dE) = 1.6 x 10(-7) s m(-1) upon magnetization reversal in the strain-mediated heterostructure. The frequency dependence of magnetization switching is presented and explained within the framework of a relaxation model for the multiferroic heterostructure. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3475417]

引用

页数：3

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