Anomalous induction of ferroelectric polarization by magnetization reversal in the phase-separated multiferroic manganite Eu0.8Y0.2MnO3

被引：12

作者：

Danjoh, S. ^{[1
]}

Jung, J. -S. ^{[1
]}

Nakamura, H. ^{[1
]}

Wakabayashi, Y. ^{[1
]}

Kimura, T. ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Div Mat Phys, Osaka 5608531, Japan

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 18期

关键词：

dielectric polarisation; europium compounds; ferroelectric transitions; ferromagnetic materials; magnetic moments; magnetisation reversal; magnetoelectric effects; multiferroics; phase separation;

D O I：

10.1103/PhysRevB.80.180408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Regarding electronic phase separation and its magnetoelectric control in multiferroics, we have investigated magnetic and ferroelectric properties of Eu0.8Y0.2MnO3 located near the boundary between a ferromagnetic phase and a ferroelectric phase. We observed special coexistence of the two phases, which fractions are tuned at an arbitrary level by changing the cooling magnetic-field strength. In addition, repeated magnetization reversals by applying an alternating magnetic field induce anomalous enhancement of ferroelectric polarization, suggesting the development of the ferroelectric phase during the magnetization reversal process.

引用

页数：4

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