Absorption spectrum of one-dimensional chain with Frenkel's exiton under diagonal disorder represented by hyperbolic defects

G. G. Kozlov

All-Russian Research Center "S. I. Vavilov State Optical Institute"

Abstract: A method for calculating the absorption spectrum of a long one-dimensional closed in a ring chain with Frenkel's exiton under diagonal disorder represented by hyperbolic singularities of atomic splitting as a function of atomic absorption is proposed. It is shown that such defects lead to appearance of a wing in a exiton zone of chain without defects, whose form does not depend on number and mutual positions of defects, while it's value is proportional to the sum of amplitudes of defects. The proposed method uses a continual approximation only.

Received: 06.05.1997

DOI: 10.4213/tmf1082

 English version: Theoretical and Mathematical Physics, 1997, 113:2, 1478–1483

Bibliographic databases:

•