Ordering and phase separation of adsorbed binary mixtures

N. K. Mahale; M. W. Cole

doi:10.1016/0039-6028(86)90178-0

Ordering and phase separation of adsorbed binary mixtures

N. K. Mahale, M. W. Cole

Research output: Contribution to journal › Article › peer-review

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Abstract

The ground state energy is calculated for mixtures adsorbed on graphite and Ag surfaces. The graphite case considers noble gases adsorbed in a commensurate array, while for Ag the substrate is ignored except for its mediation of the interatomic interaction. The balance between alternative possible structures is sensitive to the assumed interaction, for which realistic potential models are employed. Comparison is made with predictions based on simple combining rules. The cases of Ar mixtures with N₂ or CO on graphite are treated, including both herringbone and pinwheel structures for the N₂. Finite temperature behavior is described qualitatively.

Original language	English (US)
Pages (from-to)	319-326
Number of pages	8
Journal	Surface Science
Volume	176
Issue number	1-2
DOIs	https://doi.org/10.1016/0039-6028(86)90178-0
State	Published - Oct 2 1986

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/0039-6028(86)90178-0

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title = "Ordering and phase separation of adsorbed binary mixtures",

abstract = "The ground state energy is calculated for mixtures adsorbed on graphite and Ag surfaces. The graphite case considers noble gases adsorbed in a commensurate array, while for Ag the substrate is ignored except for its mediation of the interatomic interaction. The balance between alternative possible structures is sensitive to the assumed interaction, for which realistic potential models are employed. Comparison is made with predictions based on simple combining rules. The cases of Ar mixtures with N2 or CO on graphite are treated, including both herringbone and pinwheel structures for the N2. Finite temperature behavior is described qualitatively.",

author = "Mahale, {N. K.} and Cole, {M. W.}",

note = "Funding Information: We are grateful to J. Bohr, for stimulating our interest in this work and helpful discussions, and similarly to M. Giri, W.A. Steele, and M.H.W. Chan. This work was supported in part by NSF Grant No. DMR-8419261.",

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T1 - Ordering and phase separation of adsorbed binary mixtures

AU - Mahale, N. K.

AU - Cole, M. W.

N1 - Funding Information: We are grateful to J. Bohr, for stimulating our interest in this work and helpful discussions, and similarly to M. Giri, W.A. Steele, and M.H.W. Chan. This work was supported in part by NSF Grant No. DMR-8419261.

PY - 1986/10/2

Y1 - 1986/10/2

N2 - The ground state energy is calculated for mixtures adsorbed on graphite and Ag surfaces. The graphite case considers noble gases adsorbed in a commensurate array, while for Ag the substrate is ignored except for its mediation of the interatomic interaction. The balance between alternative possible structures is sensitive to the assumed interaction, for which realistic potential models are employed. Comparison is made with predictions based on simple combining rules. The cases of Ar mixtures with N2 or CO on graphite are treated, including both herringbone and pinwheel structures for the N2. Finite temperature behavior is described qualitatively.

AB - The ground state energy is calculated for mixtures adsorbed on graphite and Ag surfaces. The graphite case considers noble gases adsorbed in a commensurate array, while for Ag the substrate is ignored except for its mediation of the interatomic interaction. The balance between alternative possible structures is sensitive to the assumed interaction, for which realistic potential models are employed. Comparison is made with predictions based on simple combining rules. The cases of Ar mixtures with N2 or CO on graphite are treated, including both herringbone and pinwheel structures for the N2. Finite temperature behavior is described qualitatively.

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JO - Surface Science

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ER -

Ordering and phase separation of adsorbed binary mixtures

Abstract

All Science Journal Classification (ASJC) codes

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