Surface Structure, Lattice Dynamics, and Raman Spectroscopy of Sulphur Passivated InP(001)

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.75.878
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TypeArticle
Journal titlePhysical Review Letters
Volume75
Issue5
Pages878881; # of pages: 2
AbstractThe sulphur-passivated InP(001) surface is studied theoretically using density-functional methods and experimentally using Raman spectroscopy. The lowest energy structure is a very striking (2×2) reconstruction with the S atoms displaced from the bridge sites to form short and long dimers, belonging to two distinct sublayers. The underlying In layer remains integral, but the P layer below it also splits into two sublayers. This structure is used to calculate the [001] interplanar force constants and the backscattering Raman spectrum. Two peaks arising from surface-layer vibrations, predicted to be at 190 and 257 cm-1, are observed experimentally.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedYes
NPARC number12338615
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Record identifier64707079-3163-48d4-ad3a-168dc2f5154b
Record created2009-09-10
Record modified2016-05-09
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