Proceedings of the Korean Vacuum Society Conference (한국진공학회:학술대회논문집)
- 2014.02a
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- Pages.163.1-163.1
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- 2014
Fermi Velocity Renormalization in Graphene
- Hwang, Choongyu ;
- Siegel, David A. (Department of Physics, University of California) ;
- Lanzara, Alessandra (Department of Physics, University of California)
- Published : 2014.02.10
Abstract
Electron-electron interactions bear important information on fundamental electronic properties such as electron effective mass, conductivity, and charge mobility. By using angle-resolved photoemission spectroscopy, here we address unusual electron self-energy in graphene induced by the electron-electron interactions, which are distinguished from those of an ordinary Fermi liquid. Our findings provide a new route for two-dimensional electron systems toward device applications.