Marginal-Fermi-liquid behavior from two-dimensional Coulomb interaction

被引：371

作者：

González, J

Guinea, F

Vozmediano, MAH

机构：

[1] CSIC, Inst Estructura Mat, Madrid 28006, Spain

[2] CSIC, Inst Ciencia Mat, Madrid 28049, Spain

[3] Univ Carlos III Madrid, Escuela Politecn Super, Madrid 28913, Spain

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.59.R2474

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A full, nonperturbative renormalization group analysis of interacting electrons in a graphite layer is performed, in order to investigate the deviations from Fermi-liquid theory that have been observed in the experimental measures of a linear quasiparticle decay rate in graphite. The electrons are coupled through Coulomb interactions, which remain unscreened due to the semimetallic character of the layer. We show that the model flows towards the noninteracting fixed point for the whole range of couplings, with logarithmic corrections which signal the marginal character of the interaction separating Fermi-liquid and non-Fermi-liquid regimes. [S0163-1829(99)50204-X].

引用

收藏

页码：R2474 / R2477

页数：4

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