Ferroelectrically induced weak ferromagnetism by design

被引：183

作者：

Fennie, Craig J. ^{[1
]}

机构：

[1] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.100.167203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a strategy to design structures for which a polar lattice distortion induces weak ferromagnetism. We identify a large class of multiferroic oxides as potential realizations and use density-functional theory to screen several promising candidates. By elucidating the interplay between the polarization and the Dzyaloshinskii-Moriya vector, we show how the direction of the magnetization can be switched between 180 degrees symmetry equivalent states with an applied electric field.

引用

页数：4

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