The influence of the antiferromagnetic boundary on the magnetic property of La2NiMnO6

Xianjie Wang; Yu Sui; Yao Li; Lu Li; Xingquan Zhang; Yang Wang; Zhiguo Liu; Wenhui Su; Jinke Tang
December 2009
Applied Physics Letters;12/21/2009, Vol. 95 Issue 25, p252502
Academic Journal
Polycrystalline La2NiMnO6 compounds were fabricated at different temperatures and their magnetic properties were investigated. Although the antiferromagnetic antisite disorder degree changes a little, the antiferromagnetic coupling intensity increases with increasing synthesized temperature. When La2NiMnO6 sample was cooled at 100 Oe from room temperature to 10 K, exchange bias was observed. Our results confirm that the exchange bias should originate from the coupling between the ferromagnetic La2NiMnO6 and antiferromagnetic antiphase boundaries.


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