Spectroscopic investigations of phonons in epitaxial graphene
Antonio Politano
TL;DR
This review surveys spectroscopic methods used to study phonons in epitaxial graphene on metals, focusing on electron-phonon interactions, elastic properties, and phonon mode control relevant for nanotech applications.
Contribution
It provides a comprehensive overview of vibrational characterization techniques and their findings in epitaxial graphene on metallic substrates.
Findings
Identification of electron-phonon interaction effects like Kohn anomalies
Evaluation of elastic properties of epitaxial graphene
Demonstration of nanoscale control over phonon modes
Abstract
The interaction of graphene with metallic substrates reveals phenomena and properties of great relevance for applications in nanotechnology. In this review, the vibrational characterization by means of various inelastic scattering spectroscopies are surveyed for graphene epitaxially grown on metals and transition carbides. In particular, the manifestations of electron-phonon interaction, such as Kohn anomalies, the evaluation of elastic properties and the nanoscale control of phonon modes are presented and discussed.
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