Magnetic and elastic properties of CeAg
Magnetic and elastic properties of CeAg
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CeAg 的磁性和弹性特性
DOI：
10.1016/0304-8853(81)90043-3
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发表时间：
1981
影响因子：
2.7
通讯作者：
B. Lüthi
中科院分区：
文献类型：
--
作者：
R. Takke;N. Dolezal;W. Assmus;B. Lüthi
本文报道了CeAg和Ce0.09La0.91Ag单晶的磁性和弹性测量结果.用晶场分裂J= 5 2态的基态为Γ 8，可以定量地解释Ce 0.0 9 La 0.91Ag的磁化率. CeAg在Tc = 5.3K时发生铁磁相变，在15 K时发生结构相变.后一种情况在弹性常数测量中清楚地观察到，其中c11-c12表现出明显的软化。这种结构转变可能是由于声子软化区边界。讨论了CeAg的磁性，特别是有序区的小磁矩。
Magnetic and elastic measurements in single crystals of CeAg and Ce 0.09 La 0.91 Ag are presented. The magnetic susceptibility of Ce 0.09 La 0.91 Ag can be quantitatively interpreted with taking Γ 8 as the ground state of the crystal field split J= 5 2 state of the Ce 3+-ion. In CeAg we confirm a ferromagnetic phase transition at T c= 5.3 K and a structural transition at 15 K. This latter one is clearly observed with the elastic constant measurements where c 11-c 12 exhibits appreciable softening. This structural transition is probably due to a phonon softening at the zone boundary. The magnetic properties of CeAg, especially the small magnetic moment in the ordered region, are discussed.