Evidence for Anderson Lattice Behavior in CeAg under Pressure
Evidence for Anderson Lattice Behavior in CeAg under Pressure
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压力下 CeAg 中安德森晶格行为的证据
DOI：
10.1103/physrevlett.46.364
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发表时间：
1981
影响因子：
8.6
通讯作者：
J. Schilling
中科院分区：
文献类型：
--
作者：
A. Eiling;J. Schilling
CeAg的居里温度T0随静水压力的变化在P = 0.7GPa处有一个明确的最大值，这为安德森晶格行为提供了明确的证据.当P> 2.1GPa时，电阻异常在T0处迅速展宽，表明磁序特征发生了变化。在这些压力下，电阻率对300 K的温度依赖性是高度反常的，类似于被认为处于或接近混合价态的Ce化合物。
The Curie temperature T 0 of CeAg as a function of hydrostatic pressure exhibits a well-defined maximum at P≃ 0.7 GPa, giving clear evidence for Anderson lattice behavior. A rapid broadening of the resistive anomaly at T 0 for P>~ 2.1 GPa suggests a change in the character of the magnetic ordering. At these pressures the temperature dependence of the electrical resistivity to 300 K is highly anomalous, resembling closely that of Ce compounds thought to be in or near the mixed-valence regime.