Non-Fermi-liquid behavior due to short-range order

被引:27
作者
McKenzie, RH
Scarratt, D
机构
[1] School of Physics, University of New South Wales
来源
PHYSICAL REVIEW B | 1996年 / 54卷 / 18期
关键词
D O I
10.1103/PhysRevB.54.R12709
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
An exactly soluble one-dimensional model of electrons interacting with order-parameter fluctuations associated with short-range order is considered. The energy and momentum dependence of the electronic self-energy and spectral function are calculated and found to exhibit non-Fermi-liquid features similar to that seen for the two-dimensional Hubbard model: a pseudogap, shadow bands, anomalies in the self-energy, and breakdown of the quasiparticle picture. Deviations from Fermi-liquid behavior are largest close to the Fermi surface and as the correlation length increases.
引用
收藏
页码:12709 / 12712
页数:4
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