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Electron-phonon Scattering in Topological Insulator Thin Films by Giraud, Sébastien; Kundu, Arijit; Egger, Reinhold is a scholarly article available to read on EtoBox.

What is Electron-phonon Scattering in Topological Insulator Thin Films about?

We present a theoretical study of electron-phonon scattering effects in thin films made of a strong topological insulator. Phonons are modelled by isotropic elastic continuum theory with stress-free boundary conditions, and the interaction with the helical surface Dirac fermions is mediated by the deformation potential. We determine the temperature-dependent electrical resistivity $\rho(T)$ and the quasiparticle decay rate $\Gamma(T)$ observable in photoemission. The low- and high-temperature power laws for both quantities are obtained analytically. Detailed estimates covering the full temperature range are provided for Bi$_2$Se$_3$.

Author

Giraud, Sébastien; Kundu, Arijit; Egger, Reinhold

Published

2011

Language

EN