Local Probes of Graphene Lattice Dynamics

Jörg Kröger*, Nicolas Néel, Tim Oliver Wehling, Mads Brandbyge

*Corresponding author for this work

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Abstract

Inelastic electron tunneling spectroscopy with a scanning tunneling microscope is a powerful method to excite and detect vibrational quanta with atomic resolution. The focus of this review article is on the local spectroscopy of graphene phonons. The experimental observation of their spectroscopic signatures together with theoretical modeling highlight the importance of the graphene–surface as well as the graphene–tip hybridization, the electron–phonon coupling strength, phonon-mediated tunneling, local doping profiles, and the phonon density of state for the measured signal. Meanwhile, a comprehensive understanding of the underlying mechanisms has been attained and justifies an overview on available findings.
Original languageEnglish
Article number1900817
JournalSmall Methods
Number of pages18
ISSN2366-9608
DOIs
Publication statusAccepted/In press - 2020

Cite this

Kröger, J., Néel, N., Wehling, T. O., & Brandbyge, M. (Accepted/In press). Local Probes of Graphene Lattice Dynamics. Small Methods, [1900817]. https://doi.org/10.1002/smtd.201900817