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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/56875

Title: Bulk defects in graphite observed with a scanning tunnelling microscope
Author: SHVETS, IGOR
Author's Homepage: http://people.tcd.ie/ivchvets
Keywords: highly oriented pyrolytic graphite
HOPG
layered materials
moire pattern
scanning tunnelling microscopy
Issue Date: 1998
Publisher: Elsevier
Citation: Osing, J., Shvets, I.V., Bulk defects in graphite observed with a scanning tunnelling microscope , Surface Science, 417, 1, 1998, 145-150
Series/Report no.: Surface Science;
417;
1;
Abstract: Scanning tunnelling microscopy (STM) has been used to observe a misorientation of a graphite layer that is buried several layers below the surface. A nanoscale periodic pattern superimposed on the atomic graphite lattice has been observed. The appearance of the superperiodic features in the STM image is shown to be clearly tip-sample distance dependent. We suggest that a subsurface misorientation, several layers deep, causes a nanoscale moire pattern, which can propagate to the surface and contributes to the STM image. This result is rather surprising as STM is thought to be unable to image bulk defects.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/56875
Related links: http://dx.doi.org/10.1016/S0039-6028(98)00678-5
Appears in Collections:Physics (Scholarly Publications)

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