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http://hdl.handle.net/1942/4544
Title: | Scanning tunneling microscopy and spectroscopy of non-doped hydrogen terminated CVD diamond | Authors: | Cannaerts, M. NESLADEK, Milos REMES, Zdenek van Haesendonck, C. STALS, Lambert |
Issue Date: | 2000 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | Physica status solidi: A: applied research, 181(1). p. 77-82 | Abstract: | The electron emission from a diamond surface is influenced by the surface termination and the surface density of states. It is known that the hydrogen termination of diamond surfaces induces p-type conduction. Scanning tunneling spectroscopy (STS), combined with high-resolution topographical imaging with the scanning tunneling microscope (STM), enables to investigate local variations in the electronic structure of surfaces. We show that the hydrogen termination is sufficient to obtain reproducible STM and STS measurements. We find that the formation of a Schottky point contact between tip and sample gives rise to a rectifying I-V characteristic. Retracting the tip results in a change in the I-V characteristics from a rectifying behavior towards normal tunneling behavior. The tunneling measurements confirm the surface p-type conductivity and Fermi level pinning at the valence band. | Document URI: | http://hdl.handle.net/1942/4544 | DOI: | 10.1002/1521-396X(200009)181:1<77::AID-PSSA77>3.0.CO;2-L | ISI #: | 000089827900016 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2001 |
Appears in Collections: | Research publications |
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