Interlayer exchange coupling across a ferroelectric barrier

被引：19

作者：

Zhuravlev, M. Ye ^{[1
,2
]}

Vedyayev, A. V. ^{[3
]}

Tsymbal, E. Y. ^{[1
]}

机构：

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

[2] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia

[3] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119899, Russia

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2010年 / 22卷 / 35期

基金：

俄罗斯基础研究基金会;

关键词：

MAGNETIC TUNNEL-JUNCTIONS; FERROMAGNETS; HETEROSTRUCTURES; POLARIZATION; LAYERS;

D O I：

10.1088/0953-8984/22/35/352203

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A new magnetoelectric effect is predicted originating from the interlayer exchange coupling between two ferromagnetic layers separated by an ultrathin ferroelectric barrier. It is demonstrated that ferroelectric polarization switching driven by an external electric field leads to a sizable change in the interlayer exchange coupling. The effect occurs in asymmetric ferromagnet/ferroelectric/ferromagnet junctions due to a change in the electrostatic potential profile across the junction affecting the interlayer coupling. The predicted phenomenon indicates the possibility of switching the magnetic configuration by reversing the polarization of the ferroelectric barrier layer.

引用

页数：4

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