Above-Room-Temperature Magnetodielectric Coupling in a Possible Molecule-Based Multiferroic: Triethylmethylammonium Tetrabromoferrate(III)
Above-Room-Temperature Magnetodielectric Coupling in a Possible Molecule-Based Multiferroic: Triethylmethylammonium Tetrabromoferrate(III)
复制标题
可能的基于分子的多铁性化合物中的室温以上磁介电耦合:四溴铁酸三乙基甲基铵 (III)
DOI:
10.1021/ja3073319
复制
发表时间:
2012-11-14
影响因子:
15
通讯作者:
Xiong, Ren-Gen
中科院分区:
文献类型:
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作者:
Cai, Hong-Ling;Zhang, Yi;Xiong, Ren-Gen
A possible above-room-temperature molecular multiferroic, triethylmethylammonium tetrabromoferrate(III) (1), has been discovered. Its ferroelectric and magnetic phase transitions take place at almost the same temperature (similar to 360 K), resulting in strong magnetodielectric (MD) coupling, with a MD ratio of 18% at 0.6 MHz. Interestingly, 1 also undergoes a low temperature ferroelectric-ferroelectric phase transition with an Aizu notation of 6mmF6 and small magnetic and dielectric anomalies at 171 K.