Sign reversal of magnetization in Mn substituted SmCrO3

被引：33

作者：

Dash, Bibhuti B. ^{[1
]}

Ravi, S. ^{[1
]}

机构：

[1] Indian Inst Technol Guwahati, Dept Phys, Gauhati 781039, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 405卷

关键词：

Samarium chromites; Antiferromagnetism; Magnetization reversal; WEAK FERROMAGNETISM;

D O I：

10.1016/j.jmmm.2015.12.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Single phase samples of orthorhombic SmCr1-xMnxO3 compounds were prepared for x=0 to 0.50. Analysis of X-ray diffraction patterns shows a systematic increase in lattice parameters with increase in Mn concentration. The phenomenon of magnetization reversal is observed for x=0.10-0.30 samples with a maximum magnetic compensation temperature of 126 K. The mechanism of magnetization reversal is explained by considering the competition between the paramagnetic moments of Mn3+ and Sm3+ ions under the influence of negative internal field due to antiferromagnetically ordered Cr3+ ions and the canted ferromagnetic component of Cr3+ ions. For x >= 0.40, the samples exhibit ferromagnetic like behavior. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：209 / 213

页数：5

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