Interaction of H2 with simple metal surfaces: a model based on the anisotropic effective medium theory

M. Karimi; D. Ila; I. Dalins; G. Vidali

doi:10.1016/0039-6028(90)90606-9

Interaction of H₂ with simple metal surfaces: a model based on the anisotropic effective medium theory

M. Karimi, D. Ila, I. Dalins, G. Vidali

Department of Physics

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

4 Scopus citations

Abstract

Calculations are presented for the interaction of H₂ with surfaces of Cu, Ag, Au and Al. The repulsive part of the potential is evaluated using the results of anisotropic effective medium theory (AEMT) while the attractive part is calculated from anisotropic damped dipole-dipole and damped dipole-quadrupole interactions. The model does not have any fitting parameters and its predictions are in excellent agreement with the available experimental data. The anisotropy of H₂ is included in the model but our results show that this effect is very small.

Original language	English (US)
Pages (from-to)	L505-L510
Journal	Surface Science
Volume	239
Issue number	1-2
DOIs	https://doi.org/10.1016/0039-6028(90)90606-9
State	Published - Dec 1 1990

ASJC Scopus subject areas

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

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10.1016/0039-6028(90)90606-9

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title = "Interaction of H2 with simple metal surfaces: a model based on the anisotropic effective medium theory",

abstract = "Calculations are presented for the interaction of H2 with surfaces of Cu, Ag, Au and Al. The repulsive part of the potential is evaluated using the results of anisotropic effective medium theory (AEMT) while the attractive part is calculated from anisotropic damped dipole-dipole and damped dipole-quadrupole interactions. The model does not have any fitting parameters and its predictions are in excellent agreement with the available experimental data. The anisotropy of H2 is included in the model but our results show that this effect is very small.",

author = "M. Karimi and D. Ila and I. Dalins and G. Vidali",

note = "Funding Information: We benefited from discussions with Professor Milton Cole. We thank the referees for useful comments and we acknowledge the support of the Alabama Supercomputer Network for Cray time and, particularly, Dr. D.S. Retallack for technical help. This research was supported in part by NASA grant #NAG%127 and NSF grant #8802512.",

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T1 - Interaction of H2 with simple metal surfaces

T2 - a model based on the anisotropic effective medium theory

AU - Karimi, M.

AU - Ila, D.

AU - Dalins, I.

AU - Vidali, G.

N1 - Funding Information: We benefited from discussions with Professor Milton Cole. We thank the referees for useful comments and we acknowledge the support of the Alabama Supercomputer Network for Cray time and, particularly, Dr. D.S. Retallack for technical help. This research was supported in part by NASA grant #NAG%127 and NSF grant #8802512.

PY - 1990/12/1

Y1 - 1990/12/1

N2 - Calculations are presented for the interaction of H2 with surfaces of Cu, Ag, Au and Al. The repulsive part of the potential is evaluated using the results of anisotropic effective medium theory (AEMT) while the attractive part is calculated from anisotropic damped dipole-dipole and damped dipole-quadrupole interactions. The model does not have any fitting parameters and its predictions are in excellent agreement with the available experimental data. The anisotropy of H2 is included in the model but our results show that this effect is very small.

AB - Calculations are presented for the interaction of H2 with surfaces of Cu, Ag, Au and Al. The repulsive part of the potential is evaluated using the results of anisotropic effective medium theory (AEMT) while the attractive part is calculated from anisotropic damped dipole-dipole and damped dipole-quadrupole interactions. The model does not have any fitting parameters and its predictions are in excellent agreement with the available experimental data. The anisotropy of H2 is included in the model but our results show that this effect is very small.

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ER -

Interaction of H₂ with simple metal surfaces: a model based on the anisotropic effective medium theory

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