Ferroelectricity in the Ferrimagnetic Phase of Fe1-xMnxV2O4

Ferroelectric and magnetic properties of Fe1-xMnxV2O4 （0 ≤ x ≤ 0.5） spinels are investigated on the basis of dielectric, polarization, and susceptibility measurements. Ferroeleetric polarization is discovered in collinear ferrimagnetic and Yafet-Kittel magnetic phases for 0.1 ≤ x ≤ 0.4, which can be...

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Published in:中国物理快报：英文版 2015-08 (8), p.157-160
Main Author: 赵克寒 王宇航 石晓兰 刘娜 张留碗
Format: Article
Language:English
Subjects:
亚铁磁性
收缩机理
极性成分
电介质极化
电极化
电流模型
磁化率测量
铁电性能
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Summary:Ferroelectric and magnetic properties of Fe1-xMnxV2O4 （0 ≤ x ≤ 0.5） spinels are investigated on the basis of dielectric, polarization, and susceptibility measurements. Ferroeleetric polarization is discovered in collinear ferrimagnetic and Yafet-Kittel magnetic phases for 0.1 ≤ x ≤ 0.4, which can be tuned by a magnetic field. As orbital-active FJ＋ is substituted with Mn2＋, ferroeleetric polarization decreases for 0 ≤ x ≤ 0.4 and disappears for x=0.5. We propose that the two polar components in ferroelectric polarization originate from the exchange striction mechanism and the spin-current model, respectively.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/8/087503