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research article
Large polaron formation induced by Rashba spin-orbit coupling
2010
Here the electron-phonon Holstein model with Rashba spin-orbit interaction is studied for a two-dimensional square lattice in the adiabatic limit. It is demonstrated that a delocalized electron at zero spin-orbit coupling localizes into a large polaron state as soon as the Rashba term is nonzero. This spin-orbit induced polaron state has localization length inversely proportional to the Rashba coupling gamma and it dominates a wide region of the gamma-lambda phase diagram, where lambda is the electron-phonon interaction.
Type
research article
Web of Science ID
WOS:000274998200078
Author(s)
Date Issued
2010
Published in
Volume
81
Issue
7
Article Number
075306
Peer reviewed
REVIEWED
Written at
EPFL
EPFL units
Available on Infoscience
December 16, 2011
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