Magnetic manipulation of electric orders in Co4NbTaO9

Magnetic manipulation of electric orders in Co4NbTaO9
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Co4NbTaO9 中电序的磁操纵

DOI:
10.1039/c6ra19594f
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发表时间:
2016-10
期刊:
影响因子:
3.9
通讯作者:
Y. W. Du
Y. W. Du
中科院分区:
化学3区
文献类型:
--
作者:
Y. Y. Liu;Y. P. Lu;L. Zhang;Y. Fang;Z. D. Han;B. Qian;X. F. Jiang;L. Y. Zhu;D. H. Wang;Y. W. Du

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本文研究了多晶Co4NbTaO9的磁性、介电性和磁电性。该化合物在23.6 K时发生了反铁磁相变。在磁场作用下,介电常数和热释电电流随温度变化出现异常,并随外加磁场的增大而增大。反铁磁涨落和畴效应被认为是对该化合物所观察到的现象的响应。
Magnetic, dielectric and magnetoelectric properties of the polycrystalline Co4NbTaO9 have been investigated in this paper. The antiferromagnetic phase transition of this compound is identified at the temperature of 23.6 K. Anomalies in the temperature-dependent dielectric constants and pyroelectric currents emerge around its magnetic transition point under magnetic field, and increase with the increasing external magnetic field. Antiferromagnetic fluctuation and domain effect are considered to be response for the phenomenon observed in this compound.
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