Polaron induced modification of the speed of sound in quasi-one-dimensional molecular crystals

被引：4
|
作者：
Ivic, Z [1 ]
Vujicic, G [1 ]
Przulj, Z [1 ]
机构：
[1] Vinca Inst Nucl Sci, Dept Theoret Phys 020, YU-11001 Belgrade, Serbia Monteneg, Serbia
来源：
PHYSICS LETTERS A | 2003年 / 316卷 / 1-2期
关键词：
polaron; phonon softening; modification of speed of sound;
D O I：
10.1016/S0375-9601(03)01139-3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the possible influence of polaron effect on the phonon spectrum in quasi-one-dimensional molecular chains. It was found that polaron induced phonon correlations may lead to the characteristic modifications of the phonon frequencies and speed of sound which shows specific temperature dependence for particular type of polaron. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：126 / 134
页数：9
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