Study of competition between the magnetic ordering and the Kondo effect in the heavy fermion systems by the self-energy functional method

我们试图建立一个方案，通过这个方案我们可以研究用周期安德森模型模拟的磁离子稀释重费米子系统中观察到的特征性质。自能泛函理论和动力学平均场理论是正确处理局域量子多体效应的数值方法。结果表明，利用上述方案和相干势近似，可以把磁离子稀释系统的随机效应和电子关联效应放在同一个基础上来处理。

We have tried to construct the scheme by which we can investigate characteristic properties observed in magnetic-ion diluted heavy fermion systems modeled by the periodic Anderson model. The self-energy functional theory and the dynamical mean-field theory are numerical methods by which one can treat the local quantum many-body effect correctly. It has been shown that one can treat the randomness effect of magnetic-ion diluted systems and the electron correlation effect on the same footing by using the above scheme and the coherent potential approximation.