OALib Journal期刊
ISSN: 2333-9721
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TbMn_(6-x)Co_xSn_6赝三元化合物的结构和磁性
, PP. 543-547
Keywords: TbMn_(6-x)Co_xSn_6化合物,结构,磁性相变,饱和磁化强度
Abstract:
本文研究了TbMn_(6-x)Co_xSn_6(x=0.03,0.6,0.9,1.2和1.5)赝三元化合物的结构和磁性.结果表明用Co部分取代TbMn6Sn6中的Mn不改变其晶体结构,但随Co含量的增加晶格常数和单胞体积单调减小;居里温度随Co含量增大而降低;自旋重取向温度也随Co含量增大而降低,但Co含量≥0.6时自旋重取向消失;Co含量≥0.9时,热磁曲线上出现补偿点旦补偿温度随Co含量增大而升高;4.5K的饱和磁化强度先随Co含量增大而减小,在x=0.6时达到极小值,而后随Co含量的继续增加而增大.
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