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American Institute of Physics, Applied Physics Letters, 10(101), p. 102411

DOI: 10.1063/1.4751990

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Positive and Negative Exchange Bias Effects in the Simple Perovskite Manganite NdMnO3

Journal article published in 2012 by Fang Hong ORCID, Zhenxiang Cheng, Jianli Wang ORCID, Xiaolin Wang, Shixue Dou
This paper is available in a repository.
This paper is available in a repository.

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Abstract

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.