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A Soft Incommensurate Reconstruction on PB/SI(111)

Published online by Cambridge University Press:  21 February 2011

Ing-Shouh Hwang ,
Robert E. Martinez ,
Chien Liu  and
Jene A. Golovchenko
Ing-Shouh Hwang
Affiliation:
Institute of Physics, Academia Sinica, Taipei, Taiwan, R.O.C.
Robert E. Martinez
Affiliation:
Department of Physics, University of Texas, Austin, TX 78712
Chien Liu
Affiliation:
Department of Physics and Division of Applied Sciences, Harvard University, Cambridge, MA 02138
Jene A. Golovchenko
Affiliation:
Department of Physics and Division of Applied Sciences, Harvard University, Cambridge, MA 02138
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Abstract

We resolve the atomic structure of the 1 monolayer incommensurate (IC) reconstruction of Pb on Si(111) using a tunneling microscope. The local structure of this surface consists of alternating domains of two types of Pb trimers together with quasi-lxl regions. A novel feature of this surface is its sensitivity of the domain morphology to surface stress inhomogeneities. We observe that the stress fields originating from nearby reconstructions transform the IC phase into a 1×1 structure. The transformation involves only small lateral displacements of Pb atoms from the T1 site.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 355: Symposium B1 – Evolution of Thin-Film and Surface Structure and Morphology , 1994 , 153
Copyright
Copyright © Materials Research Society 1995

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