Width of phonon sidebands in the Brownian oscillator model
Author
Ye, Jun
Zhao, Yang
Ng, Nathaniel
Cao, Jianshu
Date of Issue
2009School
School of Materials Science and Engineering
Abstract
The line width dependence of zero-phonon lines and phonon sidebands on temperature, bath dissipation, and electron−phonon coupling is studied for an underdamped Brownian oscillator model with an Ohmic dissipative bath. Factors determining the line widths vary from the zero-phonon lines to the phonon sidebands. The control-parameter space of line broadening has been mapped out, revealing that the line widths of the zero-phonon lines and phonon sidebands are linearly dependent on both the temperature and the Huang−Rhys factor. It is also found that the dependence of the line widths on the bath damping factor is linear for the zero-phonon lines and quadratic for the phonon sidebands.
Subject
DRNTU::Science::Chemistry::Physical chemistry::Solid state chemistry
Type
Journal Article
Series/Journal Title
Journal of physical chemistry B
Rights
© 2009 American Chemical Society
Collections
http://dx.doi.org/10.1021/jp809425g
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