The multiferroic perovskite YFeO3

被引：181
|
作者：
Shang, Mingyu [1 ]
Zhang, Chenyang [1 ]
Zhang, Tingsong [1 ]
Yuan, Lin [1 ]
Ge, Lei [1 ]
Yuan, Hongming [1 ]
Feng, Shouhua [1 ]
机构：
[1] Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Coll Chem, Changchun 130012, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 06期
基金：
中国国家自然科学基金;
关键词：
POLARIZATION;
D O I：
10.1063/1.4791697
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The orthoferrite YFeO3 with orthorhombic perovskite structure (Pnma) has been synthesized by mild hydrothermal method. The temperature-dependent magnetization and hysteresis loops indicate that, due to the superexchange and Dzyaloshinskii-Moriya interactions in the crystals, the Fe spins order antiferromagnetically at the Neel temperature 655 K with a weak ferromagnetic moment. The observation of saturation polarization loops at room temperature and 77 K provide evidence for the ferroelectric character of the polycrystalline samples. Its Curie temperature has been obtained from the temperature dependence of the relative permittivities and thermal analysis. As a result, the structure exhibits simultaneously weak ferromagnetic and ferroelectric behavior. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4791697]
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页数：3
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