Adsorption-site investigation of Rb/Cu(111) using the x-ray standing-wave method

X. Shi; C. Su; D. Heskett; L. Berman; C. C. Kao; M. J. Bedzyk

doi:10.1103/PhysRevB.49.14638

Adsorption-site investigation of Rb/Cu(111) using the x-ray standing-wave method

X. Shi^*, C. Su, D. Heskett, L. Berman, C. C. Kao, M. J. Bedzyk

^*Corresponding author for this work

Materials Science and Engineering

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

24 Scopus citations

Abstract

We have carried out a back reflection x-ray standing-wave investigation to study the adsorbate-substrate bond length and bonding site for the system Rb/Cu(111). Our low-energy electron diffraction study showed an ordered (2×2) phase for one monolayer of Rb on Cu(111) (=0.25). By measuring both the (111) and (111) Bragg reflections at this coverage, we determine the Rb adsorption to be in the top site. We observe a high degree of order in the Rb overlayer perpendicular to the surface, with large disorder parallel to the surface.

Original language	English (US)
Pages (from-to)	14638-14642
Number of pages	5
Journal	Physical Review B
Volume	49
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevB.49.14638
State	Published - 1994

ASJC Scopus subject areas

Condensed Matter Physics

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10.1103/PhysRevB.49.14638

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title = "Adsorption-site investigation of Rb/Cu(111) using the x-ray standing-wave method",

abstract = "We have carried out a back reflection x-ray standing-wave investigation to study the adsorbate-substrate bond length and bonding site for the system Rb/Cu(111). Our low-energy electron diffraction study showed an ordered (2×2) phase for one monolayer of Rb on Cu(111) (=0.25). By measuring both the (111) and (111) Bragg reflections at this coverage, we determine the Rb adsorption to be in the top site. We observe a high degree of order in the Rb overlayer perpendicular to the surface, with large disorder parallel to the surface.",

author = "X. Shi and C. Su and D. Heskett and L. Berman and Kao, {C. C.} and Bedzyk, {M. J.}",

year = "1994",

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AU - Shi, X.

AU - Su, C.

AU - Heskett, D.

AU - Berman, L.

AU - Kao, C. C.

AU - Bedzyk, M. J.

PY - 1994

Y1 - 1994

N2 - We have carried out a back reflection x-ray standing-wave investigation to study the adsorbate-substrate bond length and bonding site for the system Rb/Cu(111). Our low-energy electron diffraction study showed an ordered (2×2) phase for one monolayer of Rb on Cu(111) (=0.25). By measuring both the (111) and (111) Bragg reflections at this coverage, we determine the Rb adsorption to be in the top site. We observe a high degree of order in the Rb overlayer perpendicular to the surface, with large disorder parallel to the surface.

AB - We have carried out a back reflection x-ray standing-wave investigation to study the adsorbate-substrate bond length and bonding site for the system Rb/Cu(111). Our low-energy electron diffraction study showed an ordered (2×2) phase for one monolayer of Rb on Cu(111) (=0.25). By measuring both the (111) and (111) Bragg reflections at this coverage, we determine the Rb adsorption to be in the top site. We observe a high degree of order in the Rb overlayer perpendicular to the surface, with large disorder parallel to the surface.

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JO - Physical Review B

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IS - 20

ER -

Adsorption-site investigation of Rb/Cu(111) using the x-ray standing-wave method

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