CALCULATION OF THE DIELECTRIC FUNCTION OF THE ONE-DIMENSIONAL HUBBARD-MODEL

被引：4

作者：

GASSER, W

HOFLING, R

机构：

[1] Sektion Physik, Technischen Universität Dresden, Wissenschaftsbereich Theoretische Physik

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1979年 / 92卷 / 01期

关键词：

D O I：

10.1002/pssb.2220920111

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The dielectric function of the one‐dimensional Hubbard model is evaluated in the strong correlation limit for small wave numbers and arbitrary electron concentrations in the paramagnetic phase. Expressions are given for the plasma frequencies, the plasmon stiffness, the critical wave number and for the real and imaginary part of the dielectric function in the whole frequency region. The results are compared with recent experimental studies of K‐TCNQ (potassium‐tetracyanoquino‐dimethane) performed by Tanner et al. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

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页码：91 / 97

页数：7

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