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Solitary excitations in molecular chains in the presence of vibronic states
Author(s) -
Pushkaeov Kh. I.,
Peimatabova M. T.
Publication year - 1986
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221330130
Subject(s) - intramolecular force , chain (unit) , excitation , molecule , exciton , physics , vibrational energy , atomic physics , molecular physics , chemistry , quantum mechanics
Solitary excitations due to the combination of an electronic excitation with intramolecular (both totally symmetric and nontotally symmetric) vibrations are shown to take place in molecular chains. Two cases are considered: a) when the molecules of the chain are fixed at their equilibrium positions and b) when the chain molecules are oscillating. In the second case solitary bound states of the chain deformation and the exciton‐intramolecular excitation can exist and propagate along the chain. The parameters of the solitons and the energy of the system are calculated.