Thermoelectric power of compounds with cerium: Influence of the crystalline field on the Kondo effect
Thermoelectric power of compounds with cerium: Influence of the crystalline field on the Kondo effect
复制标题
铈化合物的热电势：结晶场对近藤效应的影响
DOI：
10.1103/physrevb.13.3441
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发表时间：
1976
影响因子：
3.7
通讯作者：
B. Coqblin
中科院分区：
文献类型：
--
作者：
A. Bhattacharjee;B. Coqblin
在描述铈的共振散射特性并考虑自旋和轨道交换散射的有效哈密顿量的框架内，研究了晶场对铈化合物近藤效应的影响.精确计算了晶体场分裂两能级时的三阶微扰理论热电势。将该模型应用于Ce1 − xLaxAl3的热电功率测量，结果与实验符合良好，特别是在低铈浓度下。
The influence of the crystalline field on the Kondo effect of compounds with cerium is studied in the framework of an effective Hamiltonian which describes the resonant scattering character of cerium and which takes into account combined spin and orbit exchange scattering. The third-order perturbation-theory thermoelectric power is computed exactly in the case of two levels split by the crystalline field. The model is applied to the thermoelectric-power measurements of Ce 1− x La x Al 3 and the agreement with experiment is good, especially for low cerium concentration.