Please use this identifier to cite or link to this item:
Title: Off-diagonal carrier-phonon coupling and polaron transport
Authors: Ye, Jun
Chen, Dongmeng
Zhao, Yang
Issue Date: 2012
Source: Ye, J., Chen, D., & Zhao, Y. (2012). Off-diagonal carrier-phonon coupling and polaron transport. Journal of Physics: Conference Series, 338, 012018.
Series/Report no.: Journal of physics : conference series
Abstract: A method extending the Munn-Silbey approach has been applied to obtain the temperature dependence of transport properties of a generalized Holstein model incorporating simultaneous diagonal and off-diagonal carrier-phonon coupling. The Hamiltonian is partially diagonalized by a canonical transformation, and optimal transformation coefficients are determined in a self-consistent manner. Effects of off-diagonal coupling on the optimal transformation coefficients and diffusion coefficients have been discussed in details. The off-diagonal coupling has been revealed as a localization factor as well as a transport mechanism. Moreover, momentum-space variation of the transformation coefficients are found to be responsible for enhanced transport due to off-diagonal coupling.
ISSN: 1742-6596
DOI: 10.1088/1742-6596/338/1/012018
Rights: © 2012 IOP Publishing Ltd.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

Citations 50

Updated on Jan 22, 2023

Web of ScienceTM
Citations 50

Updated on Feb 3, 2023

Page view(s) 20

Updated on Feb 6, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.