Room temperature magnetic-field manipulation of electrical polarization in multiferroic thin film composite BiFeO3/La2/3Ca1/3MnO3

被引：75

作者：

Cheng, Zhenxiang ^{[1
]}

Wang, Xiaolin ^{[1
]}

机构：

[1] Univ Wollongong, Inst Supercond & Elect Mat, Wollongong, NSW 2522, Australia

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.75.172406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electrical polarization in an epitaxially BiFeO3 film grown on La2/3Ca1/3MnO3/SrTiO3 is observed to be enhanced greatly by a magnetic field at room temperature. The simultaneous ferromagnetic order and ferroelectric polarization shown by the BiFeO3 film causes the strong coupling of the magnetic and ferroelectric domains in the BiFeO3 films. It was proposed that the activation energy for the electrical polarization domains switching is reduced by the application of a magnetic field. As a result, the electrical polarization that can be switched by an electrical field is increased by the magnetic field.

引用

页数：4

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