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29 March 2024
 
  » arxiv » cond-mat/0606035

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Spin-Hall Conductivity in Electron-Phonon Coupled Systems
C. Grimaldi ; E. Cappelluti ; F. Marsiglio ;
Date 1 Jun 2006
Subject Mesoscopic Systems and Quantum Hall Effect
AbstractWe derive the ac spin-Hall conductivity $sigma_{ m sH}(omega)$ of two-dimensional spin-orbit coupled systems interacting with dispersionless phonons of frequency $omega_0$. For the linear Rashba model we show that the electron-phonon contribution to the spin-vertex corrections breaks the universality of $sigma_{ m sH}(omega)$ at low-frequencies and provides a non-trivial renormalization of the interband resonance. On the contrary, in a generalized Rashba model for which the spin-vertex contributions are absent, the coupling to the phonons enters only through the self-energy, leaving the low frequency behavior of $sigma_{ m sH}(omega)$ unaffected by the electron-phonon interaction.
Source arXiv, cond-mat/0606035
Other source [GID 364434] pmid17026184
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