Effects of optical and surface polar phonons on the optical conductivity of doped graphene

URN to cite this document:: urn:nbn:de:bvb:355-epub-267573
DOI to cite this document:: 10.5283/epub.26757

Scharf, Benedikt ; Perebeinos, Vasili ; Fabian, Jaroslav

; Avouris, Phaedon

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Date of publication of this fulltext: 19 Nov 2012 13:30

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Abstract

Using the Kubo linear response formalism, we study the effects of intrinsic graphene optical and surface polar phonons (SPPs) on the optical conductivity of doped graphene. We find that inelastic electron-phonon scattering contributes significantly to the phonon-assisted absorption in the optical gap. At room temperature, this midgap absorption can be as large as 20-25% of the universal ac ...