KONDO EFFECT IN A TOMONAGA-LUTTINGER LIQUID

被引：193

作者：

FURUSAKI, A ^{[1
]}

NAGAOSA, N ^{[1
]}

机构：

[1] UNIV TOKYO,DEPT APPL PHYS,BUNKYO KU,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.72.892

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Kondo effect in a repulsively interacting electron system (Tomonaga-Luttinger liquid) is studied. By using the poor man's scaling method it is shown that the Kondo coupling in this model flows to the strong-coupling regime not only for the antiferromagnetic but also for the ferromagnetic case. The ground state is governed by stable strong-coupling fixed points where the impurity spin is completely screened; the fixed-point Hamiltonian consists of two semi-infinite Tomonaga-Luttinger liquids and a spin singlet. Specific heat, susceptibility, and conductance are calculated for low temperatures.

引用

页码：892 / 895

页数：4

共 28 条

[1] EXACT CONFORMAL-FIELD-THEORY RESULTS ON THE MULTICHANNEL KONDO EFFECT - SINGLE-FERMION GREEN-FUNCTION, SELF-ENERGY, AND RESISTIVITY [J].