Effect of rare-earth ions on magnetic properties and spin excitations in manganites

被引：18

作者：

Mukhin, AA

Ivanov, VY

Travkin, VD

Prokhorov, AS

Balbashov, AM

Hemberger, J

Loidl, A

机构：

[1] RAS, Inst Gen Phys, Moscow 119991, Russia

[2] Moscow Power Res Inst, Moscow 105835, Russia

[3] Univ Augsburg, EKM, D-86135 Augsburg, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

manganitc; rare-earth ion; magnetic anisotropy; antiferromagnetic resonance; magnetodipolar transition;

D O I：

10.1016/j.jmmm.2003.11.041

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A qualitative change of a character of Mn ion ordering was observed in RMnO3 single crystals (R = Sm, Eu, Gd) with decreasing of the R-ion ionic radii (tolerance factor) from Sm to Gd. At low temperatures, a direct magnetic contribution of R ions results in a significant increasing of magnetization in GdMnO3 and in appearance of a compensation point at 9 K in SmMnO3. In the submillimeter transmission spectra we observed magnetic excitations in Sm and Gd subsystems in addition to the antiferromagnetic resonance (AFMR) modes in Mn subsystem. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：96 / 97

页数：2

共 4 条

[1] Crystal and magnetic structure of orthorhombic HoMnO3 -: art. no. 094411 [J].