Structure and magnetic properties of SmCo7-xZrx alloys (x=0-0.8)
Structure and magnetic properties of SmCo7-xZrx alloys (x=0-0.8)
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DOI：
10.1063/1.367655
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发表时间：
1998-06-01
影响因子：
3.2
通讯作者：
Ma, BM
中科院分区：
文献类型：
--
作者：
Huang, MQ;Wallace, WE;Ma, BM
合成了组成为SmCo7-xZrx(x=0-0.8)的合金，并在10-1273K和5T以下的磁场下进行了表征。实验结果表明，少量的Zr替代有助于稳定TbCu7结构，并改善磁各向异性H-a，在室温下x=0-180Koe时为90Koe，x=0.5时为140Koe，10K时为140Koe。讨论了CaCu5、TbCu7、Th2Zn17和Ce2Ni7在不同热处理条件下的相变。(C)1998年美国物理研究所。[S0021-8979(98)29511-9]。
The alloys with composition of SmCo7-xZrx(x = 0 - 0.8) were synthesized and characterized in the temperature range of 10-1273 K and at fields up to 5 T. The experimental results show that a small amount of Zr substitution can contribute to a stabilization of the TbCu7 structure, and improve magneto-anisotropy H-a from 90 kOe for x = 0-180 kOe for x = 0.5 at room temperature, and from 140 kOe for x = 0 - 300 kOe for x = 0.5 at 10 K. It is probable that Zr may partly replace a dumbbell of Co atom pair in these alloys. The phase transition between CaCu5, TbCu7, Th2Zn17 and Ce2Ni7 at different heat treatment conditions was also discussed. (C) 1998 American Institute of Physics. [S0021-8979(98)29511-9].