Potential Energy Landscape for hot electrons in periodically nanostructured graphene
Mesoscale and Nanoscale Physics
2010-07-19 v1
Abstract
We explore the spatial variations of the unoccupied electronic states of graphene epitaxially grown on Ru(0001) and observed three unexpected features: the first graphene image state is split in energy, unlike all other image states, the split state does not follow the local work function modulation, and a new interfacial state at +3 eV appears on some areas of the surface. These results show the system behaves as a self-organized periodic array of quantum dots.
Keywords
Cite
@article{arxiv.1004.0593,
title = {Potential Energy Landscape for hot electrons in periodically nanostructured graphene},
author = {B. Borca and S. Barja and M. Garnica and D. Sanchez-Portal and V. M. Silkin and E. V. Chulkov and F. Hermanns and J. J. Hinarejos and A. L. Vazquez de Parga and A. Arnau and P. M. Echenique and R. Miranda},
journal= {arXiv preprint arXiv:1004.0593},
year = {2010}
}
Comments
20 pages, 6 figures