TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Ivić, Zoran
AU  - Galović, Slobodanka
AU  - Reshetnyak, Alexander A.
AU  - Chizhov, Alexei V.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/990
AB  - We studied the properties of the intramolecular vibrational excitation (vibron) at finite temperature in a system which consists of two parallel macromolecular chains. It was assumed that vibron interacts exclusively with dispersionless optical phonons and the whole system is considered to be in thermal equilibrium. Particular attention has been paid to the examination of the impact of the temperature and strength of the interchain coupling on the small polaron crossover. For that purpose we employed partial dressing method which enables the study of the degree of the phonon dressing of the vibron excitations in a wide area of system parameter space. We found that in the non-adiabatic regime the degree of dressing as a function of coupling constant continuously increases reflecting the smooth transition of the slightly dressed, practically free vibron, to a heavily dressed one: small polaron. As adiabaticity rises this transition becomes increasingly steeper, and finally, in the adiabatic limit, a discontinuous jump of the degree of dressing is observed. The interchain coupling manifests itself through the increase of the effective adiabatic parameter of the system. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Physica B: Condensed Matter
T1  - On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling
VL  - 490
SP  - 9
EP  - 15
DO  - 10.1016/j.physb.2016.02.033
ER  - 

@article{
author = "Čevizović, Dalibor and Ivić, Zoran and Galović, Slobodanka and Reshetnyak, Alexander A. and Chizhov, Alexei V.",
year = "2016",
abstract = "We studied the properties of the intramolecular vibrational excitation (vibron) at finite temperature in a system which consists of two parallel macromolecular chains. It was assumed that vibron interacts exclusively with dispersionless optical phonons and the whole system is considered to be in thermal equilibrium. Particular attention has been paid to the examination of the impact of the temperature and strength of the interchain coupling on the small polaron crossover. For that purpose we employed partial dressing method which enables the study of the degree of the phonon dressing of the vibron excitations in a wide area of system parameter space. We found that in the non-adiabatic regime the degree of dressing as a function of coupling constant continuously increases reflecting the smooth transition of the slightly dressed, practically free vibron, to a heavily dressed one: small polaron. As adiabaticity rises this transition becomes increasingly steeper, and finally, in the adiabatic limit, a discontinuous jump of the degree of dressing is observed. The interchain coupling manifests itself through the increase of the effective adiabatic parameter of the system. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Physica B: Condensed Matter",
title = "On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling",
volume = "490",
pages = "9-15",
doi = "10.1016/j.physb.2016.02.033"
}

Čevizović, D., Ivić, Z., Galović, S., Reshetnyak, A. A.,& Chizhov, A. V.. (2016). On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling. in Physica B: Condensed Matter
Elsevier., 490, 9-15.
https://doi.org/10.1016/j.physb.2016.02.033

Čevizović D, Ivić Z, Galović S, Reshetnyak AA, Chizhov AV. On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling. in Physica B: Condensed Matter. 2016;490:9-15.
doi:10.1016/j.physb.2016.02.033 .

Čevizović, Dalibor, Ivić, Zoran, Galović, Slobodanka, Reshetnyak, Alexander A., Chizhov, Alexei V., "On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling" in Physica B: Condensed Matter, 490 (2016):9-15,
https://doi.org/10.1016/j.physb.2016.02.033 . .