Low-temperature phase transition in ErMn2O5

被引：26

作者：

Koyata, Y ^{[1
]}

Kohn, K ^{[1
]}

机构：

[1] Waseda Univ, Dept Phys, Shinjuku Ku, Tokyo 169, Japan

来源：

FERROELECTRICS | 1997年 / 204卷 / 1-4期

关键词：

ferroelectric transition; spontaneous polarization; magnetic ordering; helimagnetic ordering; magnetoelectric effect; rare earth; ErMn2O5;

D O I：

10.1080/00150199708222193

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

From the measurements of dielectric constant, pyroelectricity, magnetoelectric effect and magnetization, we conclude that ErMn2O5 is ferroelectric below 37K. In addition, magnetoelectric susceptibility increases remarkably with decreasing temperature below approximately 10 K, accompanied with the growth of magnetic long-range ordering of Er3+. We suppose that this magnetic ordering brings a change in the crystal structure, resulting in the change in spontaneous polarization. A magnetic-field-induced transition occurs between 10 and 30 kOe in this low-temperature phase.

引用

页码：115 / 124

页数：10

共 17 条

[1] HELIOMAGNETIC ORDER OF MANGANESE IN TMN2O5 SERIES [J].