Voltage-dependent scanning-tunneling microscopy of a crystal surface: Graphite
- 15 February 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 31 (4), 2602-2605
- https://doi.org/10.1103/physrevb.31.2602
Abstract
We discuss the possible application of the scanning tunneling microscope (STM) to surface electronic spectroscopy, with an explicit calculation of the voltage-dependent tunneling current for an ideal STM experiment performed on graphite. We study how surface and bulk electronic states are reflected in the tunneling J-V spectra, and show that empty surface states of graphite may be well discriminated against bulklike structures by considering STM spectra at different tip-surface separations.Keywords
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