Predicted magnetoelectric effect in Fe/BaTiO3 multilayers:: Ferroelectric control of magnetism

被引：647

作者：

Duan, Chun-Gang ^{[1
]}

Jaswal, S. S. ^{[1
]}

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

机构：

[1] Univ Nebraska, Dept Phys & Astron, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68583 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.97.047201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An unexplored physical mechanism which produces a magnetoelectric effect in ferroelectric-ferromagnetic multilayers is studied based on first-principles calculations. Its origin is a change in bonding at the ferroelectric-ferromagnet interface that alters the interface magnetization when the electric polarization reverses. Using Fe/BaTiO3 multilayers as a representative model, we show a sizable difference in magnetic moments of Fe and Ti atoms at the two interfaces dissimilar by the orientation of the local electric dipole moments. The predicted magnetoelectric effect opens a new direction to control magnetic properties of thin-film layered structures by electric fields.

引用

页数：4

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