NONLINEAR SCREENING AND METALLIC ISLANDS CREATED BY DEFECTS OF DENSITY WAVES IN QUASI-ONE-DIMENSIONAL CONDUCTORS

被引：27

作者：

ARTEMENKO, SN ^{[1
]}

GLEISBERG, F ^{[1
]}

机构：

[1] UNIV ULM,MATH PHYS ABT,D-89069 ULM,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.75.497

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the shape and the energy of 2 pi phase solitons, i.e., vacancies or interstitials of the electronic crystal formed by the density wave (DW), and the distortion of the DW induced by impurities. We show that at low temperatures nonlinear screening by electronic excitations strongly modifies the characteristic spatial and energy scales of phase distortions in DW conductors, resulting in the formation of metallic regions at the soliton center and around the impurities.

引用

页码：497 / 500

页数：4