Nesting and instability in a two-dimensional system

被引：0

作者：

Lin, F ^{[1
]}

Chen, XB

Fu, RT

Sun, X

Kawazoe, Y

机构：

[1] Univ Yangzhou, Dept Phys, Yangzhou 225002, Peoples R China

[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[3] Acad Sinica, Natl Lab Infrared Phys, Shanghai 200433, Peoples R China

[4] Inst Mol Sci, Okazaki, Aichi 444, Japan

[5] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 98077, Japan

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1998年 / 206卷 / 02期

关键词：

D O I：

10.1002/(SICI)1521-3951(199804)206:2<559::AID-PSSB559>3.0.CO;2-#

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Different from one-dimensional systems, nesting in two-dimensional (2D) systems is not perfect but some 2D systems still have Peierls instability and hidden nesting. This paper shows that the nest nearest neighbor (NNN) hopping which controls the nesting deviation, heavily suppresses the Peierls instability. There is a critical value for the NNN hopping, beyond which the Peierls instability is destroyed and the hidden nesting is lost. The impact of such change to other phase transitions is discussed.

引用

页码：559 / 565

页数：7

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