Surface vibrations of clean and S covered Cu (001)

QT Jiang; P. Fenter; T. Gustafsson

doi:10.1016/0042-207X(92)90348-Z

Surface vibrations of clean and S covered Cu (001)

QT Jiang, P. Fenter, T. Gustafsson

School of Arts and Sciences, New High Energy Theory Center

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

Abstract

We report a study of the vibrational properties of Cu(001) and p(2×2)-S/Cu(001) using Medium Energy Ion Scattering (MEIS). These two surfaces have a simple geometric structure and we can therefore use MEIS to study their vibrational properties. We have found (as is usually the case) that the surface vibrational amplitudes of both surfaces are enhanced (by ∼ 80%). A detailed analysis of our data shows an unexpected anisotropy of the vibrational amplitude of clean Cu(001), in that the out-of-plane vibrational amplitude is 30% smaller than the in-plane vibrational amplitude. The anisotropy is removed upon formation of the p(2×2)-S/Cu(001) surface.

Original language	English (US)
Pages (from-to)	1123-1124
Number of pages	2
Journal	Vacuum
Volume	43
Issue number	11
DOIs	https://doi.org/10.1016/0042-207X(92)90348-Z
State	Published - Nov 1992

All Science Journal Classification (ASJC) codes

Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films

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10.1016/0042-207X(92)90348-Z

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@article{865241eb954e42e9ab7ff621b055ac22,

title = "Surface vibrations of clean and S covered Cu (001)",

abstract = "We report a study of the vibrational properties of Cu(001) and p(2×2)-S/Cu(001) using Medium Energy Ion Scattering (MEIS). These two surfaces have a simple geometric structure and we can therefore use MEIS to study their vibrational properties. We have found (as is usually the case) that the surface vibrational amplitudes of both surfaces are enhanced (by ∼ 80%). A detailed analysis of our data shows an unexpected anisotropy of the vibrational amplitude of clean Cu(001), in that the out-of-plane vibrational amplitude is 30% smaller than the in-plane vibrational amplitude. The anisotropy is removed upon formation of the p(2×2)-S/Cu(001) surface.",

author = "QT Jiang and P. Fenter and T. Gustafsson",

note = "Funding Information: We would like to thank Dr R Bartynski l\~r Sending us the Cu(001) crystal. This work was supported by the National Science Foundation (NSF) Grant No DMR-90-19868.",

year = "1992",

month = nov,

doi = "10.1016/0042-207X(92)90348-Z",

language = "English (US)",

volume = "43",

pages = "1123--1124",

journal = "Vacuum",

issn = "0042-207X",

publisher = "Elsevier Ltd",

number = "11",

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TY - JOUR

T1 - Surface vibrations of clean and S covered Cu (001)

AU - Jiang, QT

AU - Fenter, P.

AU - Gustafsson, T.

N1 - Funding Information: We would like to thank Dr R Bartynski l\~r Sending us the Cu(001) crystal. This work was supported by the National Science Foundation (NSF) Grant No DMR-90-19868.

PY - 1992/11

Y1 - 1992/11

N2 - We report a study of the vibrational properties of Cu(001) and p(2×2)-S/Cu(001) using Medium Energy Ion Scattering (MEIS). These two surfaces have a simple geometric structure and we can therefore use MEIS to study their vibrational properties. We have found (as is usually the case) that the surface vibrational amplitudes of both surfaces are enhanced (by ∼ 80%). A detailed analysis of our data shows an unexpected anisotropy of the vibrational amplitude of clean Cu(001), in that the out-of-plane vibrational amplitude is 30% smaller than the in-plane vibrational amplitude. The anisotropy is removed upon formation of the p(2×2)-S/Cu(001) surface.

AB - We report a study of the vibrational properties of Cu(001) and p(2×2)-S/Cu(001) using Medium Energy Ion Scattering (MEIS). These two surfaces have a simple geometric structure and we can therefore use MEIS to study their vibrational properties. We have found (as is usually the case) that the surface vibrational amplitudes of both surfaces are enhanced (by ∼ 80%). A detailed analysis of our data shows an unexpected anisotropy of the vibrational amplitude of clean Cu(001), in that the out-of-plane vibrational amplitude is 30% smaller than the in-plane vibrational amplitude. The anisotropy is removed upon formation of the p(2×2)-S/Cu(001) surface.

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DO - 10.1016/0042-207X(92)90348-Z

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VL - 43

SP - 1123

EP - 1124

JO - Vacuum

JF - Vacuum

IS - 11

ER -

Surface vibrations of clean and S covered Cu (001)

Abstract

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