A cubic AuBe5-type YbCu5 phase with trivalent Yb ion
A cubic AuBe5-type YbCu5 phase with trivalent Yb ion
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具有三价 Yb 离子的立方 AuBe5 型 YbCu5 相
DOI：
10.1016/0925-8388(96)02884-8
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发表时间：
1996
影响因子：
6.2
通讯作者：
K. Kosuge
中科院分区：
文献类型：
--
作者：
J. He;N. Tsujii;M. Nakanishi;K. Yoshimura;K. Kosuge
首次在1.5GPa压力下制备了具有AuBe 5型结构的立方YbCu 5化合物，并在650°C下退火。先前报道的具有CaCu5型结构的六方YbCu5相也被证实在相对较低的压力和较高的温度下是稳定的。与Yb离子在六方相中的二价非磁性状态相反。立方相中的Yb离子处于三价磁性状态。立方YbCu_5相可能是同构YbCu_5，M_1（M = In，Ag，etc.）化合物，无论是在晶体学方面和物理性质。
The cubic YbCu5compound with the AuBe5-type structure was prepared for the first time under a pressure of 1.5 GPa and annealed at 650°C. The previously reported hexagonal YbCu5phase with the CaCu5-type structure was also confirmed to be stable under relatively lower pressure and at higher temperature. In contrast to the divalent non-magnetic state of Yb ion in the hexagonal phase. Yb ion in the cubic phase was found to be in the trivalent magnetic state. The cubic YbCu5phase probably presents a reasonable conjunction for a family of isostructural YbCu5, M1(M = In, Ag, etc.) compounds, both in crystallographic aspect and in physical properties.