Localized phonons in a pristine polyacene chain

被引：6

作者：

Wu, YJ ^{[1
]}

Zhao, H

An, Z

Wu, CQ

机构：

[1] Fudan Univ, Res Ctr Theoret Phys, Shanghai 200433, Peoples R China

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

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2002年 / 14卷 / 20期

关键词：

D O I：

10.1088/0953-8984/14/20/101

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Within an extended Su-Schrieffer-Heeger model, we investigate the localized phonons in a pristine polyacene chain, in which there is an interchain-coupled neutral soliton of D-2h symmetry. In addition to three pairs of twofold-degenerate edge modes (three infrared active and three Raman active), we found in total nine localized modes, among which four (three B-2u and one B-3u) modes are infrared active and the others (two A(g) and three B-1g) modes are Raman active.

引用

页码：L341 / L348

页数：8

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