Imaging Dynamics of Carbon Atoms in a Graphene Sheet

ORAL

Abstract

Using a transmission electron aberration--corrected microscope capable of simultaneous atomic spatial resolution and 1-second temporal resolution, we record the dynamics of carbon atoms surrounding a hole in a suspended, graphene sheet. As the hole grows, bonds rearrange and atoms are ejected by the electron beam. We study the mechanism of edge reconstruction and demonstrate the stability of the ``zigzag'' edge configuration both theoretically and by image analysis of the data. ~We discuss other phenomena from the movie such as pentaheptite edge reconstruction and defect-induced strain.

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Authors

  • Alex Zettl

    • University of California - Berkeley
    • Department of Physics, University of California, Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
    • Department of Physics and Center of Integrated Nanomechanical Systems, UC Berkeley
    • Physics Department, UC Berkeley and Materials Sciences Division, Lawrence Berkeley National Lab

  • \c{C}a\u{g}lar Girit

    • University of California - Berkeley
    • Department of Physics, University of California, Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory

  • Jannik Meyer

    • University of Ulm
    • Department of Physics, University of California, Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory

  • Rolf Erni

    • National Center for Electron Microscopy, Lawrence Berkeley National Laboratory

  • Marta Rossell

    • National Center for Electron Microscopy, Lawrence Berkeley National Laboratory

  • Christian Kisielowski

    • National Center for Electron Microscopy, Lawrence Berkeley National Laboratory

  • Li Yang

    • Department of Physics, University of California, Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory

  • Cheol-Hwan Park

    • UC Berkeley
    • Department of Physics, University of California, Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
    • UC Berkeley and Lawrence Berkeley National Lab

  • Michael Crommie

    • Department of Physics, University of California, Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
    • University of California Berkeley, Lawrence Berkeley National Laboratory

  • Marvin L. Cohen

    • UC Berkeley and Lawrence Berkeley National Laboratory
    • Department of Physics, University of California, Berkeley. Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California
    • UC Berkeley
    • Department of Physics, University of California, Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
    • Department of Physics, University of California, Berkeley; Material Science Division, Lawrence Berkeley National Laboratory
    • Deptartment of Physics, University of California, Berkeley; Materials Science Division, Lawrence Berkeley National Laboratory
    • Department of Physics, University of California, Berkeley, and Materials Science Division, Lawrence Berkeley National Laboratory
    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720

  • Steven G. Louie

    • UC Berkeley and Lawrence Berkeley National Laboratory
    • Department of Physics, University of California, Berkeley. Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California
    • University of California at Berkeley and Lawrence Berkeley National Lab
    • University of California at Berkeley and Lawrence Berkeley National Laboratory
    • University of California, Berkeley and Lawrence Berkeley National Laboratory
    • UC Berkeley
    • Department of Physics, University of California, Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
    • UC Berkeley and Lawrence Berkeley National Lab
    • UC Berkeley and LBNL
    • Department of Physics, University of California, Berkeley, and Materials Science Division, Lawrence Berkeley National Laboratory
    • Dept. of Physics, University of California Berkeley and The Molecular Foundry, LBNL
    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720