摘要
作者之一提出重费密子体系是一种f电子可以随温度变化的Kondo体系,f电子被束缚在费密面附近的一个窄带上,由此模型,本文在理论上给出磁化率随温度的变化关系,统一地解释了磁化率的各种反常,理论的数值计算给出了八种重费密子的磁化率,它们都与实验曲线较好地符合,同时讨论了重费密子体系的磁化率对样品的依赖性。
One of the authors[1] had pointed out that the heavy fermion system is a kind of Kondo system in which localized f-electrons can change with temperature. The f-electrons are bound in a narrow band near Fermi level. Using this model, the relation between the susceptibility and temperature is deduced and the susceptibility anomaly is explained in this paper. The calculated results of susceptibility for all the eight heavy fermion system coinside with the experimental data. The strong sample dependence of the susceptibility of the heavy fermion system has also been discussed.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第10期1676-1683,共8页
Acta Physica Sinica
