Interaction and band structure effects for He on graphite derived from scattering data

William E. Carlos; Milton W. Cole

doi:10.1016/0039-6028(78)90171-1

Interaction and band structure effects for He on graphite derived from scattering data

William E. Carlos, Milton W. Cole

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

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Abstract

Boato, Cantini and Tatarek have derived the surface bound state spectrum from measurements of ⁴He scattering by graphite. We fit their results to a potential V(r) obtained by pairwise summation of Lennard-Jones 6-12 interactions, with the optimal parameters ε{lunate} = 1.34 meV, σ = 2.75 Å. The maximum-to-minimum wall corrugation Δz = 0.21 Å characteristic of V(r) agrees with the value obtained from diffraction intensity measurements. Predictions are made for the band structure matrix elements for ⁴He and ³He, and for the selective adsorption eigen-values for ³He.

Original language	English (US)
Pages (from-to)	L173-L176
Journal	Surface Science
Volume	77
Issue number	1
DOIs	https://doi.org/10.1016/0039-6028(78)90171-1
State	Published - Oct 1 1978

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(78)90171-1

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@article{7678b0452d8a4761970536faafd905bb,

title = "Interaction and band structure effects for He on graphite derived from scattering data",

abstract = "Boato, Cantini and Tatarek have derived the surface bound state spectrum from measurements of 4He scattering by graphite. We fit their results to a potential V(r) obtained by pairwise summation of Lennard-Jones 6-12 interactions, with the optimal parameters ε{lunate} = 1.34 meV, σ = 2.75 {\AA}. The maximum-to-minimum wall corrugation Δz = 0.21 {\AA} characteristic of V(r) agrees with the value obtained from diffraction intensity measurements. Predictions are made for the band structure matrix elements for 4He and 3He, and for the selective adsorption eigen-values for 3He.",

author = "Carlos, {William E.} and Cole, {Milton W.}",

note = "Funding Information: We are grateful to D.L. Goodstein, W.A. Steele, D.R. Frankl, S.V. Krishnas-wamy, T. O{\textquoteright}Gorman, G. Dcrry, D. Wesner,V . Celli and N. Garcia for helpful discus-sion, and to G. Boato for sendinga preprint of ref. [8]. This researchw as supported in part by a PennsylvaniaS tate University ResearchI nitiation Grant.",

year = "1978",

month = oct,

day = "1",

doi = "10.1016/0039-6028(78)90171-1",

language = "English (US)",

volume = "77",

pages = "L173--L176",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier B.V.",

number = "1",

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TY - JOUR

T1 - Interaction and band structure effects for He on graphite derived from scattering data

AU - Carlos, William E.

AU - Cole, Milton W.

N1 - Funding Information: We are grateful to D.L. Goodstein, W.A. Steele, D.R. Frankl, S.V. Krishnas-wamy, T. O’Gorman, G. Dcrry, D. Wesner,V . Celli and N. Garcia for helpful discus-sion, and to G. Boato for sendinga preprint of ref. [8]. This researchw as supported in part by a PennsylvaniaS tate University ResearchI nitiation Grant.

PY - 1978/10/1

Y1 - 1978/10/1

N2 - Boato, Cantini and Tatarek have derived the surface bound state spectrum from measurements of 4He scattering by graphite. We fit their results to a potential V(r) obtained by pairwise summation of Lennard-Jones 6-12 interactions, with the optimal parameters ε{lunate} = 1.34 meV, σ = 2.75 Å. The maximum-to-minimum wall corrugation Δz = 0.21 Å characteristic of V(r) agrees with the value obtained from diffraction intensity measurements. Predictions are made for the band structure matrix elements for 4He and 3He, and for the selective adsorption eigen-values for 3He.

AB - Boato, Cantini and Tatarek have derived the surface bound state spectrum from measurements of 4He scattering by graphite. We fit their results to a potential V(r) obtained by pairwise summation of Lennard-Jones 6-12 interactions, with the optimal parameters ε{lunate} = 1.34 meV, σ = 2.75 Å. The maximum-to-minimum wall corrugation Δz = 0.21 Å characteristic of V(r) agrees with the value obtained from diffraction intensity measurements. Predictions are made for the band structure matrix elements for 4He and 3He, and for the selective adsorption eigen-values for 3He.

UR - http://www.scopus.com/inward/record.url?scp=49349126046&partnerID=8YFLogxK

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U2 - 10.1016/0039-6028(78)90171-1

DO - 10.1016/0039-6028(78)90171-1

M3 - Letter

AN - SCOPUS:49349126046

SN - 0039-6028

VL - 77

SP - L173-L176

JO - Surface Science

JF - Surface Science

IS - 1

ER -

Interaction and band structure effects for He on graphite derived from scattering data

Abstract

All Science Journal Classification (ASJC) codes

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