Theory of infrared double-resonance Raman spectrum in graphene: The role of the zone-boundary electron-phonon enhancement


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Date

2024-02-15

Publication Type

Journal Article

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Abstract

We theoretically investigate the double-resonance Raman spectrum of monolayer graphene down to infrared laser excitation energies. By using first-principles density functional theory calculations, we improve upon previous theoretical predictions based on conical models or tight-binding approximations, and rigorously justify the evaluation of the electron-phonon enhancement found in Venanzi, Graziotto et al. [Phys. Rev. Lett. 130, 256901 (2023)0031-900710.1103/PhysRevLett.130.256901]. We proceed to discuss the effects of such enhancement on the room-temperature graphene resistivity, hinting towards a possible reconciliation of theoretical and experimental discrepancies.

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published

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Volume

109 (7)

Pages / Article No.

75420

Publisher

American Physical Society

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Funding

207795 - Engineering and probing electronic properties of solid-state matter with vacuum fluctuations in Terahertz metamaterials (SNF)
881603 - Graphene Flagship Core Project 3 (EC)

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