Magnetic-Field-Induced Dielectric Anomaly and Electric Polarization in Co4Ta2O9
Magnetic-Field-Induced Dielectric Anomaly and Electric Polarization in Co4Ta2O9
复制标题
Co4Ta2O9 中磁场诱发的介电异常和电极化
DOI:
10.1111/jace.13651
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发表时间:
2015-07
影响因子:
3.9
通讯作者:
Du Youwei
中科院分区:
文献类型:
--
作者:
Fang Yong;Yan Shiming;Zhang Lei;Han Zhida;Qian Bin;Wang Dunhui;Du Youwei
We report magnetic and electric properties of Co4Ta2O9, which is a collinear antiferromagnet with trigonal structure. At zero magnetic fields, no dielectric anomaly and electric polarization are observed in this compound. While, finite dielectric peaks and electric polarization develop under applied magnetic field, and increase with increasing field, showing magnetodielectric and magnetoelectric performance. We ascribe the magnetic-field-induced dielectric anomaly and electric polarization in Co4Ta2O9 to spin fluctuation and domain effect.
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