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Article overview
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Impact of Dresselhaus vs. Rashba spin-orbit coupling on the Holstein polaron | | Zhou Li
; L. Covaci
; F. Marsiglio
; | | Date: |
13 Mar 2012 | | Abstract: | We utilize an exact variational numerical procedure to calculate the ground
state properties of a polaron in the presence of Rashba and linear Dresselhaus
spin-orbit coupling. We find that when the linear Dresselhaus spin-orbit
coupling approaches the Rashba spin-orbit coupling, the Van-Hove singularity in
the density of states will be shifted away from the bottom of the band and
finally disappear when the two spin-orbit couplings are tuned to be equal. The
effective mass will be suppressed; the trend will become more significant for
low phonon frequency. The presence of two dominant spin-orbit couplings will
make it possible to tune the effective mass with more varied observables. | | Source: | arXiv, 1203.2795 | | Services: | Forum | Review | PDF | Favorites | |
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