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  • This is a dirac cone showing a typical dispersion relation (energy vs. momentum) for 2-D graphene material. Red cross-sectional lines represent quantization of the energy (and momentum) due to a finite size constriction.
    B. Terrés, L. A. Chizhova, F. Libisch, J. Peiro, D. Jörger, S. Engels, A. Girschik, K. Watanabe, T. Taniguchi, S. V. Rotkin, J. Burgdörfer, C. Stampfer
    This is a dirac cone showing a typical dispersion relation (energy vs. momentum) for 2-D graphene material. Red cross-sectional lines represent quantization of the energy (and momentum) due to a finite size constriction.
  • This is a scanning electron microscopy (SEM) image of graphene nanoconstriction: graphene material is shown in red, 4 metal electrodes are also seen.
    B. Terrés, L. A. Chizhova, F. Libisch, J. Peiro, D. Jörger, S. Engels, A. Girschik, K. Watanabe, T. Taniguchi, S. V. Rotkin, J. Burgdörfer, C. Stampfer
    This is a scanning electron microscopy (SEM) image of graphene nanoconstriction: graphene material is shown in red, 4 metal electrodes are also seen.
  • This graph shows electrical conductance, G, of electrons (black) and holes (red) in graphene nanoconstriction (shown in SEM image), as a function of electron/hole wave vector (momentum) showing characteristic steps (quantization of conductance) as indicated by arrows.
    B. Terrés, L. A. Chizhova, F. Libisch, J. Peiro, D. Jörger, S. Engels, A. Girschik, K. Watanabe, T. Taniguchi, S. V. Rotkin, J. Burgdörfer, C. Stampfer
    This graph shows electrical conductance, G, of electrons (black) and holes (red) in graphene nanoconstriction (shown in SEM image), as a function of electron/hole wave vector (momentum) showing characteristic steps (quantization of conductance) as indicated by arrows.
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