Spin dependence of the magnetization step in the Pr-doped manganites

被引：6

作者：

Cao, Guixin ^{[1
]}

Zhang, Jincang ^{[1
]}

Kang, Baojuan ^{[1
]}

Sha, Yanna ^{[1
]}

Cao, Shixun ^{[1
]}

Shen, Xuechu ^{[1
]}

机构：

[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China

来源：

EPL | 2008年 / 81卷 / 01期

关键词：

D O I：

10.1209/0295-5075/81/17003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic measurements were performed to study a single crystal Pr0.5Sr0.5MnO3 and polycrystalline Pr0.6Ca0.4MnO3. Magnetic-field-induced magnetization step is observed at low temperature for Pr-doped phase-separated manganites. Magnetization measurements indicate that the spin-stiffness constant D exhibits large magnetic-field dependence. Moreover, there exists a remarkable change of the spin-stiffness constant corresponding to the variety of the step-like magnetization. Our results suggest that the spin-wave inherent to the coexistence of the antiferromagnetic and ferromagnetic phases plays a crucial role in the mechanism of these magnetic transformations. Copyright (C) EPLA, 2008.

引用

页数：4

共 26 条

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