Rao, M. V. H. ; Mathur, B. K. ; Chopra, K. L. (1992) Method of identification of electronically different surface atoms by scanning tunneling microscopy and surface state spectroscopy of the graphite(0001) surface Journal of Electron Spectroscopy and Related Phenomena, 60 (1). pp. 57-63. ISSN 0368-2048
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/036820...
Related URL: http://dx.doi.org/10.1016/0368-2048(92)87020-M
Abstract
Scanning tunneling microscopy topographic images of the graphite(0001) surface were recorded and two electronically different carbon atoms distinctly resolved by a line scan procedure. The height variation of about 0.8 Å predicted theoretically was found to lie in the range 0.2-0.8 Å experimentally. To obtain information about the structure of surface state bands, a differential conductivity spectrum was obtained by recording the I-V characteristics between -0.5 and 0.5 V by a fast scan method, keeping the feedback loop disconnected. The spectrum revealed high local density of states at 0.18 V, 0.29 V and 0.42 V.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 23056 |
| Deposited On: | 25 Nov 2010 13:37 |
| Last Modified: | 28 May 2011 04:37 |
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