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Title: Self-organization of S adatoms on Au(111): √3R30° rows at low coverage

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4922929· OSTI ID:1227393
 [1];  [2]; ORCiD logo [3];  [3];  [4];  [3];  [5]
  1. Iowa State Univ., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States)
  3. RIKEN Surface and Interface Science Lab., Saitama (Japan)
  4. Ames Lab. (AMES), Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
  5. Iowa State Univ., Ames, IA (United States); Ames Lab. (AMES), Ames, IA (United States)

Using scanning tunneling microscopy, we observe an adlayer structure that is dominated by short rows of S atoms, on unreconstructed regions of a Au(111) surface. This structure forms upon adsorption of low S coverage (less than 0.1 monolayer) on a fully reconstructed cleansurface at 300 K, then cooling to 5 K for observation. The rows adopt one of three orientations that are rotated by 30° from the close-packed directions of the Au(111) substrate, and adjacent S atoms in the rows are separated by √3 times the surface lattice constant, a. Monte Carlo simulations are performed on lattice-gas models, we derived using a limited cluster expansion based on density functional theory energetics. Furthermore, models which include long-range pairwise interactions (extending to 5a), plus selected trio interactions, successfully reproduce the linear rows of S atoms at reasonable temperatures.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
CHE1111500; AC02-07CH11358
OSTI ID:
1227393
Journal Information:
Journal of Chemical Physics, Vol. 143, Issue 1; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 37 works
Citation information provided by
Web of Science

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Cited By (5)

Gold adatoms modulate sulfur adsorption on gold journal January 2019
Adsorption of Te atoms on Au(1 1 1) and the emergence of an adatom-induced bound state journal February 2017
Sulfur-driven switching of the Ullmann coupling on Au(111) journal January 2018
Oxygen and sulfur adsorption on vicinal surfaces of copper and silver: Preferred adsorption sites journal March 2018
One-dimensional phosphorus chain and two-dimensional blue phosphorene grown on Au(111) by molecular-beam epitaxy text January 2017

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