Solution of the two-channel anderson impurity model:: Implications for the heavy fermion UBe13 -: art. no. 237206

被引：34

作者：

Bolech, CJ ^{[1
]}

Andrei, N ^{[1
]}

机构：

[1] Rutgers State Univ, Serin Phys Lab, Ctr Mat Theory, Piscataway, NJ 08854 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.88.237206

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We solve the two-channel Anderson impurity model using the Bethe-ansatz. We determine the ground state and derive the thermodynamics, obtaining the impurity entropy and specific heat over the full range of temperature. We show that the low-temperature physics is given by a line of fixed points describing a two-channel non-Fermi-liquid behavior in the integral valence regime associated with moment formation as well as in the mixed valence regime where no moment forms. We discuss the relevance for the theory of UBe13 .

引用

页数：4

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