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Polaron stability in molecular crystals

Polaron stability in molecular crystals

Authors :
Mozafari, E.
Stafström, S.
Source :
Physics Letters A. Apr2012, Vol. 376 Issue 22, p1807-1811. 5p.
Publication Year :
2012

Abstract

Abstract: A semi-empirical Peierls–Holstein model is applied to studies of the stability of polarons in two-dimensional molecular crystal systems. Calculations for a broad range of intra- and inter-molecular parameters within this model were performed in order to obtain detailed knowledge concerning the stability of the polaron solution with respect to a rigid lattice band solution. For realistic values of the parameters the polaron solution is stable with a polaron energy in the range 50–100 meV. A metastable polaron solution is also identified. The polarons that result from our model are highly localized and it is questionable if adiabatic polaron transport can occur in the system. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
03759601
Volume :
376
Issue :
22
Database :
Academic Search Index
Journal :
Physics Letters A
Publication Type :
Academic Journal
Accession number :
74660929
Full Text :
https://doi.org/10.1016/j.physleta.2012.04.007