Magnetic properties of HoMn2O5

被引：0
|
作者：
Radulov, I. [1 ,2 ]
Lovchinov, V. [1 ,2 ]
Dimitrov, D. [1 ,2 ]
Apostolov, A. [1 ]
Nizhankovskii, V. [2 ]
Daszkiewicz, M. [2 ]
机构：
[1] ISSP, BAS, 72 Tzarigradsko Chaussee Blvd, Sofia 1784, Bulgaria
[2] ILTSR, ILHMFLT, Wroclaw, Poland
来源：
SIX INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION | 2007年 / 899卷
关键词：
manganites; magnetoelectric effects; magnetostriction; dielectric properties; ferroclectricity and antiferroelectricity;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have investigated the detailed field and temperature dependence of the dielectric constant, dielectric losses, electric polarization, magnetization and magnetostriction (MS) in orthorhombic HoMn2O5 single crystals. HoMn2O5 displays incommensurate antiferromagnetic ordering below 39 K, becoming commensurate on further coohng. The commensurate-incommensurate transition takes place at low temperatures. The inherent magnetic frustration in this material is lifted by a small lattice distortion, primarily involving shifts of the Mn3+ cations and giving rise to a canted antiferroelectric phase. Colossal magnetostriction (CMS) effect was observed and a novel phase transition diagram was build.
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页码：643 / 643
页数：1
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