Coupling between the ferroelectric and antiferromagnetic orders in YMnO3

被引：478

作者：

Huang, ZJ ^{[1
]}

Cao, Y ^{[1
]}

Sun, YY ^{[1
]}

Xue, YY ^{[1
]}

Chu, CW ^{[1
]}

机构：

[1] UNIV HOUSTON,TEXAS CTR SUPERCONDUCT,HOUSTON,TX 77204

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.56.2623

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Anomalies in the dielectric constant and loss tangent have been observed in the ferroelectromagnet YMnO3 near its Neel temperature of similar to 80 K and below its ferroelectric Curie temperature of similar to 914 K. These anomalies are indicative of coupling between the ferroelectric and antiferromagnetic orders in this compound. A small but distinct magnetoelectric effect and a magnetoresistive effect up to similar to 15% were also detected in a magnetic field at 5 T. The results will be contrasted with previous theoretical predictions.

引用

页码：2623 / 2626

页数：4

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