Density of states and localization properties of a one-dimensional Frenkel Hamiltonian with off-diagonal disorder

被引：1
|
作者：
Rodriguez, A [1 ]
Dominguez-Adame, F
Kozlov, GG
Malyshev, VA
机构：
[1] Univ Politecn Madrid, Dept Matemat Aplicada & Estadist, E-28040 Madrid, Spain
[2] Univ Complutense Madrid, Dept Fis Mat, E-28040 Madrid, Spain
[3] SI Vavilov State Opt Inst, All Russian Res Ctr, St Petersburg 199034, Russia
来源：
JOURNAL OF LUMINESCENCE | 1998年 / 76-7卷
基金：
俄罗斯基础研究基金会;
关键词：
Frenkel exciton; density of states; localization;
D O I：
10.1016/S0022-2313(97)00237-8
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study a one-dimensional Frenkel Hamiltonian with off-diagonal disorder, focusing our attention on the physical nature of the zero-energy peak of the density of states. The character of excitonic states (localized or delocalized) is also examined in the vicinity of this peak. It is shown that the state being responsible for the peak is localized. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
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页码：470 / 473
页数：4
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