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Observation of Carrier-Density-Dependent Many-Body Effects in Graphene via Tunneling Spectroscopy
Cited 104 time in
Web of Science
Cited 108 time in Scopus
- Authors
- Issue Date
- 2010-01
- Publisher
- American Physical Society
- Citation
- Physical Review Letters, Vol.104 No.3, p. 036805
- 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. © 2010 The American Physical Society.
- ISSN
- 0031-9007
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