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Author Carpinelli, J. M. ♦ Weitering, H. H.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ SILICON ♦ SORPTIVE PROPERTIES ♦ SILVER ♦ CHEMISORPTION ♦ TEMPERATURE DEPENDENCE ♦ TEMPERATURE RANGE 0000-0013 K ♦ SURFACE PROPERTIES ♦ DIFFUSION ♦ INTERFACES ♦ PHASE TRANSFORMATIONS ♦ ENERGY-LEVEL DENSITY ♦ CHEMICAL BONDS
Abstract Using the spectroscopic capabilities of a scanning tunneling microscope, we identified and investigated a low-temperature {ital reconstruction} {ital pathway} for forming Si(111)({radical}3{times}{radical}3){ital R}30{degree}-Ag from the Si(111)3{times}1-Ag interface. A metastable intermediate phase consisting of one-dimensional atom chains atop the Si(111)3{times}1-Ag reconstruction stabilizes {ital locally}. The density of states at the chains indicates a Ag-Si bonding configuration similar to that of the ({radical}3{times}{radical}3){ital R}30{degree} reconstruction. We propose a mechanism for the (3{times}1) to ({radical}3{times}{radical}3){ital R}30{degree} phase transformation at low temperature. {copyright} {ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-05-01
Publisher Department Oak Ridge National Laboratory
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 53
Issue Number 19
Organization Oak Ridge National Laboratory


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