Magnetoelectric effect of rare earth manganese oxide RMn2O5

被引：20

作者：

Nakamura, H ^{[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：

spontaneous polarization; magnetic ordering; helimagnetic ordering; magnetoelectric effect; linear magnetoelectric effect; time inversion symmetry; rare earth manganese oxide; RMn2O5;

D O I：

10.1080/00150199708222192

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetoelectric effect of rare earth manganese oxides RMn2O5 (R=Eu, Gd, Tb, Ho, Er, Yb and Y) has been studied by a quasistatic magnetoelectric method for the purpose of determining whether linear magnetoelectric effect is present or not. The results indicate that the main part of the effect at 4.2 K is represented by quadratic (in magnetic field) term except the case of R=Er and Yb. Linear magnetoelectric susceptibility is less than 5 x 10(-6) cgs unit, if it exists, except the cases of EuMn2O5, YbMn2O5 and TbMn2O5. Anomalous behaviors were observed in ErMn2O5 and YbMn2O5, indicating a phase transition driven by an applied magnetic field.

引用

页码：107 / 114

页数：8

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