Particle adsorption on finite-width square terraces in stepped surfaces.

The preferential adsorption on the steps of finite-width terraces is modeled by allowing lattice–adsorbate interaction at the edges (or steps) of the terrace to be different from that in the bulk. As in our previous studies, the system is at sufficiently low temperature, and at thermodynamic equilibrium. However, no a priori assumptions are made as to whether forces are attractive or repulsive, or as to their relative strength. The occupational characteristics of all the phases are found to fit exact analytic expressions in the width M of the terrace. Many numerical values of the occupational characteristics at the transitions also fit exact analytic expressions in M and the golden ratio (1+(5)1/2)/2. Our results are compared with experiments, in particular, the adsorption of cobalt on Ag(1 0 0), and bromine on Cu(s)-[10(100)×1(001)].

Main Author: Phares, Alain J.
Other Authors: Wunderlich, Francis J., Kumar, Aryavarta M. S.
Format: Villanova Faculty Authorship
Language: English
Published: 2001
Online Access: http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:179448
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dc_source_str_mv Surface Science, Volume 495, 2001, page 140-152.
author Phares, Alain J.
author_facet_str_mv Phares, Alain J.
Wunderlich, Francis J.
Kumar, Aryavarta M. S.
author_or_contributor_facet_str_mv Phares, Alain J.
Wunderlich, Francis J.
Kumar, Aryavarta M. S.
author_s Phares, Alain J.
spellingShingle Phares, Alain J.
Particle adsorption on finite-width square terraces in stepped surfaces.
author-letter Phares, Alain J.
author_sort_str Phares, Alain J.
author2 Wunderlich, Francis J.
Kumar, Aryavarta M. S.
author2Str Wunderlich, Francis J.
Kumar, Aryavarta M. S.
dc_title_str Particle adsorption on finite-width square terraces in stepped surfaces.
title Particle adsorption on finite-width square terraces in stepped surfaces.
title_short Particle adsorption on finite-width square terraces in stepped surfaces.
title_full Particle adsorption on finite-width square terraces in stepped surfaces.
title_fullStr Particle adsorption on finite-width square terraces in stepped surfaces.
title_full_unstemmed Particle adsorption on finite-width square terraces in stepped surfaces.
collection_title_sort_str particle adsorption on finite-width square terraces in stepped surfaces.
title_sort particle adsorption on finite-width square terraces in stepped surfaces.
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description The preferential adsorption on the steps of finite-width terraces is modeled by allowing lattice–adsorbate interaction at the edges (or steps) of the terrace to be different from that in the bulk. As in our previous studies, the system is at sufficiently low temperature, and at thermodynamic equilibrium. However, no a priori assumptions are made as to whether forces are attractive or repulsive, or as to their relative strength. The occupational characteristics of all the phases are found to fit exact analytic expressions in the width M of the terrace. Many numerical values of the occupational characteristics at the transitions also fit exact analytic expressions in M and the golden ratio (1+(5)1/2)/2. Our results are compared with experiments, in particular, the adsorption of cobalt on Ag(1 0 0), and bromine on Cu(s)-[10(100)×1(001)].
publishDate 2001
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dc.title Particle adsorption on finite-width square terraces in stepped surfaces.
dc.creator Phares, Alain J.
Wunderlich, Francis J.
Kumar, Aryavarta M. S.
dc.description The preferential adsorption on the steps of finite-width terraces is modeled by allowing lattice–adsorbate interaction at the edges (or steps) of the terrace to be different from that in the bulk. As in our previous studies, the system is at sufficiently low temperature, and at thermodynamic equilibrium. However, no a priori assumptions are made as to whether forces are attractive or repulsive, or as to their relative strength. The occupational characteristics of all the phases are found to fit exact analytic expressions in the width M of the terrace. Many numerical values of the occupational characteristics at the transitions also fit exact analytic expressions in M and the golden ratio (1+(5)1/2)/2. Our results are compared with experiments, in particular, the adsorption of cobalt on Ag(1 0 0), and bromine on Cu(s)-[10(100)×1(001)].
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