Unusual electron self-energy in graphene

ORAL

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, we study 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.

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Authors

  • Choongyu Hwang

    • Lawrence Berkeley National Laboratory

  • David Siegel

    • University of California, Berkeley

  • Sung-Kwan Mo

    • Lawrence Berkeley National Laboratory

  • William Regan

    • University of California, Berkeley

  • Ariel Ismach

    • Lawrence Berkeley National Laboratory

  • Yuegang Zhang

    • Lawrence Berkeley National Laboratory

  • Alex Zettl

    • University of California, Berkeley

  • Alessandra Lanzara

    • University of California, Berkeley