Localized self-trapping in the two-dimensional discrete molecular lattice with the interaction between Frenkel excitons and phonons

被引：0

作者：

徐权 ^{[1
,2
]}

田强 ^{[2
]}

机构：

[1] Department of Physics,Daqing Normal University

[2] Department of Physics,Beijing Normal University

来源：

Chinese Physics B | 2009年 / 09期

关键词：

self-trapping; Frenkel exciton; two-dimensional discrete molecular lattice; phonon;

D O I：

暂无

中图分类号：

O481 [固体理论];

学科分类号：

070205 ; 0805 ; 080502 ; 0809 ;

摘要：

We investigate the interactions of lattice phonons with Frenkel exciton,which has a small radius in a twodimensional discrete molecular lattice,by the virtue of the quasi-discreteness approximation and the method of multiplescale,and obtain that the self-trapping can also appear in the two-dimensional discrete molecular lattice with harmonic and nonlinear potential.The excitons' effect on the molecular lattice does not distort it but only causes it to localize which enables it to react again through phonon coupling to trap the energy and prevent its dispersion.

引用

页码：3940 / 3951

页数：12