Metamagnetism in perovskites RMnO3+x (R=Gd, Tb, Dy)

被引：18

作者：

Troyanchuk, OY ^{[1
]}

Kasper, NV ^{[1
]}

Szymczak, H ^{[1
]}

Nabialek, A ^{[1
]}

机构：

[1] POLISH ACAD SCI, INST PHYS, PL-02668 WARSAW, POLAND

来源：

LOW TEMPERATURE PHYSICS | 1997年 / 23卷 / 04期

关键词：

D O I：

10.1063/1.593400

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A magnetic study of perovskites RMnO3+x (R = Nd, Eu, Gd, Tb, Dy) is reported, The compounds NdMnO2.99 and EuMnO2.99 are weak ferromagnets with T-N = 88 and 49 K respectively It is shown that GdMnO3 undergoes a transition from antiferromagnetic to weak ferromagnetic state upon cooling. The antiferromagnetic ordering of the magnetic moments in the Gd sublattice is observed below 6 K. The magnetic moments of TbMnO3.01 and DyMnO3.01 are ordered below 7 K. The external field induces an antiferromagnet-ferromagnet transition in the rare-earth sublattice. The critical fields for GdMnO3,TbMnO3.01, and DyMnO3.01 are 5, 10, and 7 kOe, respectively. (C) 1997 American Institute of Physics.

引用

页码：300 / 302

页数：3

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