Structure of incommensurate gold sulfide monolayer on Au(111)

 
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Quek, Su Ying
Biener, Monika M.
Biener, Juergen
Bhattacharjee, Joydeep
Friend, Cynthia M.
Waghmare, Umesh V.
Kaxiras, Efthimios
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https://doi.org/10.1063/1.2770731
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Quek, Su Ying, Monika M. Biener, Juergen Biener, Joydeep Bhattacharjee, Cynthia M. Friend, Umesh V. Waghmare, and Efthimios Kaxiras. 2007. “Structure of Incommensurate Gold Sulfide Monolayer on Au(111).” The Journal of Chemical Physics 127 (10): 104704. https://doi.org/10.1063/1.2770731.
Abstract
We develop an atomic-scale model for an ordered incommensurate gold sulfide (AuS) adlayer which has previously been demonstrated to exist on the Au(111) surface, following sulfur deposition and annealing to 450 K. Our model reproduces experimental scanning tunneling microscopy images. Using state-of-the-art Wannier-function-based techniques, we analyze the nature of bonding in this structure and provide an interpretation of the unusual stoichiometry of the gold sulfide layer. The proposed structure and its chemistry have implications for related S-Au interfaces, as in those involved in self-assembled monolayers of thiols on Au substrates.
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http://nrs.harvard.edu/urn-3:HUL.InstRepos:41384021

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