Enhanced magnetic ordering in Sm metal under extreme pressure
Enhanced magnetic ordering in Sm metal under extreme pressure
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极压下 Sm 金属的增强磁排序
DOI：
10.1103/physrevb.99.085137
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发表时间：
2019
影响因子：
3.7
通讯作者：
J. Schilling
中科院分区：
文献类型：
--
作者：
Y. Deng;J. Schilling
通过四点电阻率测量，确定了Sm金属的磁有序温度对高达150 GPa压力的依赖关系。在85 GPa以上，随着压力的增加，To的增加幅度很大。在此压力范围内，具有超导性Y的稀Sm离子合金表现出巨大的近藤对断裂。综上所述，这些结果表明，在高于85 GPa的压力下，Sm处于高度相关的电子状态，就像近藤晶格一样，具有异常高的To值。并与前人在Nd、Tb、Dy及其稀磁合金中得到的类似结果作了详细的比较。
The dependence of the magnetic ordering temperature To of Sm metal was determined through four-point electrical resistivity measurements to pressures as high as 150 GPa. A strong increase in To with pressure is observed above 85 GPa. In this pressure range Sm ions alloyed in dilute concentration with superconducting Y exhibit giant Kondo pair breaking. Taken together, these results suggest that for pressures above 85 GPa Sm is in a highly correlated electron state, like a Kondo lattice, with an unusually high value of To. A detailed comparison is made with similar results obtained earlier on Nd, Tb and Dy and their dilute magnetic alloys with superconducting Y.
在高压和低温下，钐的磁转变温度遵循晶体学对称性
DOI：
10.1088/1361-648x/29/6/065801
发表时间：
2017
期刊：
Journal of Physics: Condensed Matter
影响因子：
--
作者：
Johnson, Craig R;Tsoi, Georgiy M;Vohra, Yogesh K
通讯作者：
Vohra, Yogesh K