Observation of Carrier-density-dependent Many-body Effects in Graphene Via Tunneling Spectroscopy

Overview

Journal Phys Rev Lett

Publisher American Physical Society

Specialty Biophysics

Date 2010 Apr 7

PMID 20366671

Citations 11

Authors

Victor W Brar

Sebastian Wickenburg

Melissa Panlasigui

Cheol-Hwan Park

Tim O Wehling

Yuanbo Zhang

Regis Decker

Caglar Girit

Alexander V Balatsky

Steven G Louie

Alex Zettl

Michael F Crommie

Affiliations

Soon will be listed here.

Abstract

We find the scanning tunneling spectra of backgated graphene monolayers to be significantly altered by many-body excitations. Experimental features in the spectra arising from electron-plasmon interactions show carrier density dependence, distinguishing them from density-independent electron-phonon features. Using a straightforward model, we are able to calculate theoretical tunneling spectra that agree well with our data, providing insight into the effects of many-body interactions on the lifetime of graphene quasiparticles.

Citing Articles

Direct probing of phonon mode specific electron-phonon scatterings in two-dimensional semiconductor transition metal dichalcogenides.

Lee D, Choi S, Kim H, Kim Y, Jung S Nat Commun. 2021; 12(1):4520.

PMID: 34312387 PMC: 8313722. DOI: 10.1038/s41467-021-24875-2.

Visualizing delocalized correlated electronic states in twisted double bilayer graphene.

Zhang C, Zhu T, Kahn S, Li S, Yang B, Herbig C Nat Commun. 2021; 12(1):2516.

PMID: 33947845 PMC: 8096954. DOI: 10.1038/s41467-021-22711-1.

Frustrated supercritical collapse in tunable charge arrays on graphene.

Lu J, Tsai H, Tatan A, Wickenburg S, Omrani A, Wong D Nat Commun. 2019; 10(1):477.

PMID: 30696830 PMC: 6351629. DOI: 10.1038/s41467-019-08371-2.

Observation of topologically protected states at crystalline phase boundaries in single-layer WSe.

M Ugeda M, Pulkin A, Tang S, Ryu H, Wu Q, Zhang Y Nat Commun. 2018; 9(1):3401.

PMID: 30143617 PMC: 6109167. DOI: 10.1038/s41467-018-05672-w.

Tuning charge and correlation effects for a single molecule on a graphene device.

Wickenburg S, Lu J, Lischner J, Tsai H, Omrani A, Riss A Nat Commun. 2016; 7:13553.

PMID: 27886170 PMC: 5133630. DOI: 10.1038/ncomms13553.