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

Authors

Fang Hong, University of WollongongFollow
Zhenxiang Cheng, University of WollongongFollow
Jianli Wang, University of WollongongFollow
Xiaolin Wang, University of WollongongFollow
S X. Dou, University of WollongongFollow

RIS ID

67646

Publication Details

Hong, F., Cheng, Z., Wang, J., Wang, X. & Dou, S. (2012). Positive and negative exchange bias effects in the simple perovskite manganite NdMnO3. Applied Physics Letters, 101 (10), 102411-1-102411-5.

Abstract

Exchange bias effects were studied in the simple perovskite NdMnO 3. Nd 3+ ordering is induced by the Mn 3+ 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 Nd 3+ ordering and Mn 3+ ordering, and their initial states determine the polarity of the exchange bias fields. © 2012 American Institute of Physics.