Positive and negative exchange bias effects in the simple perovskite manganite NdMnO3

被引：107

作者：

Hong, Fang ^{[1
]}

Cheng, Zhenxiang ^{[1
]}

Wang, Jianli ^{[1
]}

Wang, Xiaolin ^{[1
]}

Dou, Shixue ^{[1
]}

机构：

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2519, Australia

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 10期

基金：

澳大利亚研究理事会;

关键词：

MAGNETIC ANISOTROPY; IRON PARTICLES; THIN-FILMS; BIFEO3;

D O I：

10.1063/1.4751990

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Exchange bias effects were studied in the simple perovskite NdMnO3. Nd3+ ordering is induced by the Mn3+ ferromagnetic component, and they are antiferromagnetically coupled with each other. At 30 K, both negative and positive exchange bias effects are found, which are dependent on the cooling field. The exchange bias fields are around -2400 Oe and 1800 Oe, respectively. Positive and negative exchange bias effects were also observed at 8 K, but the exchange bias fields are only 130 Oe and -120 Oe. The coupling intensity between Nd3+ ordering and Mn3+ ordering, and their initial states determine the polarity of the exchange bias fields. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4751990]

引用

页数：5

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