Sulfur chemisorption on W(100): Antiphase boundaries with point defects |
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| Affiliation: | 1. Belgorod State National Research University, Belgorod 308015, Russia;2. Norwegian University of Science and Technology, Trondheim N-7491, Norway;1. School of Advanced Manufacturing, Nanchang University, Nanchang 330031, China;2. School of Physics and Materials Science, Nanchang University, Nanchang 330031, China;1. Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro S/N, Puerto Real, 11510 Cádiz, Spain;2. Department of Mechanical and Industrial Engineering, University of Massachusetts, Amherst, MA 01003, United States;3. ACERINOX EUROPA SAU, Technical Department, Pol. Industrial Palmones s/n, Spain |
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| Abstract: | On the basis of LEED data recorded for sulfur chemisorbed on the (100) surface of tungsten in the 0.5–0.67 coverage range, partially ordered superstructures have been calculated within the kinematic approximation. They reveal c(2 × 2) domains separated by antiphase boundaries with point defects. The superstructures are modelled with statistical occupancies of the adsorption sites. Various possibilities for the registry of the adiayer in this coverage range are discussed. |
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