Wall, D., Lohmar, I., Roos, K. R., Krug, J., Horn-von Hoegen, M. and Heringdorf, F-J Meyer Zu (2010). Imaging diffusion fields on a surface with multiple reconstructions: Ag/Si(111). New J. Phys., 12. BRISTOL: IOP PUBLISHING LTD. ISSN 1367-2630

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Abstract

Photoemission electron microscopy is used for studying the thermal decay of Ag islands grown epitaxially on a Si(111) surface. During the decay, the islands feed adatoms to the surrounding surface. The adatoms diffuse and eventually desorb, resulting in a radial coverage gradient that induces the formation of two concentric reconstructed zones, namely (root 3 x root 3)-R30 degrees and (3 x 1), around each island. We have developed a diffusion model to describe this multizone formation and demonstrate how diffusion constants can be determined for different reconstructed phases in a simple experiment.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Wall, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lohmar, I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Roos, K. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Krug, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Horn-von Hoegen, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Heringdorf, F-J Meyer ZuUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-494301
DOI: 10.1088/1367-2630/12/10/103019
Journal or Publication Title: New J. Phys.
Volume: 12
Date: 2010
Publisher: IOP PUBLISHING LTD
Place of Publication: BRISTOL
ISSN: 1367-2630
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
AG; SI(111); COVERAGE; LAYERMultiple languages
Physics, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/49430

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