Pressure-induced suppression of ferromagnetism in the itinerant ferromagnet LaCrSb3
Pressure-induced suppression of ferromagnetism in the itinerant ferromagnet LaCrSb3
复制标题
压力诱导的巡回铁磁体 LaCrSb3 中铁磁性的抑制
DOI：
10.1103/physrevb.101.214408
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发表时间：
2020
影响因子：
3.7
通讯作者：
Reynolds, C.
中科院分区：
文献类型：
--
作者：
Brubaker, Z. E.;Harvey, J. S.;Badger, J. R.;Ullah, R. R.;Campbell, D. J.;Xiao, Y.;Chow, P.;Kenney-Benson, C.;Smith, J. S.;Reynolds, C.
我们已经进行了广泛的与压力相关的结构、光谱和电输运研究。铁磁相(KATP=0)在26.5 GPa时被完全抑制，铬矩随压力的增加而稳定减小。单位体积从上到下平稳减少=55 GPA。结果表明，体弹性模量和磁性抑制与理论预测一致，但铬矩随压力的减小与理论预测的阶梯状下降不同。铁磁有序温度似乎是由铬矩驱动的。
We have performed an extensive pressure-dependent structural, spectroscopic, and electrical transport study of. The ferromagnetic phase (K atp= 0 GPa) is fully suppressed byp= 26.5 GPa and the Cr moment decreases steadily with increasing pressure. The unit-cell volume decreases smoothly up top= 55 GPa. We find that the bulk modulus and suppression of the magnetism are in good agreement with theoretical predictions, but the Cr moment decreases smoothly with pressure, in contrast to steplike drops predicted by theory. The ferromagnetic ordering temperature appears to be driven by the Cr moment.