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Author:

王少博 (王少博.) | 刘丹敏 (刘丹敏.) (Scholars:刘丹敏) | 肖卫强 (肖卫强.) | 张振路 (张振路.) | 岳明 (岳明.) (Scholars:岳明) | 张久兴 (张久兴.)

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Abstract:

利用机械合金化(MA)结合放电等离子烧结(SPS)技术,成功制备了Mn1.2Fe0.8P0.74Ge0.26-xSex(x=0,0.005,0.01,0.015,0.02,0.03)化合物,并采用XRD,DSC,振动样品磁强计(VSM)和磁热效应直接测量仪等手段对其晶体结构、相变过程以及磁热性能进行了研究.结果表明:该系化合物均具有六方Fe2P结构.随着Se含量的增加,晶格常数a和c都发生了明显的变化,c/a先减小,然后保持不变,最后又增大;且c/a的值与化合物的Curie温度Tc成一定对应关系,c/a减小会升高Tc,反之则降低Tc.外加磁场和温度的变化都能引起化合物产生一级磁热相变,即顺磁相...

Keyword:

磁相变 MnFePGeSe 磁热效应

Author Community:

  • [ 1 ] 北京工业大学固体微结构与性能研究所
  • [ 2 ] 北京工业大学材料科学与工程学院

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Source :

金属学报

Year: 2014

Issue: 09

Volume: 50

Page: 1109-1114

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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