The geometric structure of Rb Cu(111) investigated with X-ray standing waves: Rb coverage dependence

D. Heskett; P. Xu; L. Berman; C. C. Kao; M. J. Bedzyk

doi:10.1016/0039-6028(95)00860-8

The geometric structure of Rb Cu(111) investigated with X-ray standing waves: Rb coverage dependence

D. Heskett^*, P. Xu, L. Berman, C. C. Kao, M. J. Bedzyk

^*Corresponding author for this work

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

12 Scopus citations

Abstract

We have carried out a back reflection X-ray standing wave (BRXSW) investigation of the geometric structure and degree of ordering of the system Rb Cu(111) as a function of Rb coverage. We observe no change in the Rb-Cu(111) perpendicular spacing as a function of coverage from saturation coverage of θ = 1 4 down to a coverage of θ = 1 16. We find a high degree of ordering of the Rb atoms perpendicular to the surface at all coverages, but a very low degree of order parallel to the Cu(111) surface. No differences in our results were detected for measurements at room temperature versus at ∼ 190 K.

Original language	English (US)
Pages (from-to)	267-275
Number of pages	9
Journal	Surface Science
Volume	344
Issue number	3
DOIs	https://doi.org/10.1016/0039-6028(95)00860-8
State	Published - Dec 30 1995
Externally published	Yes

Funding

We would like to acknowledge fruitful discussions with J.N. Andersen and D.L. Adler. We would like to thank Dr. D. Zehner for providing the Cu(111) crystal used in this experiment. This research was carded out at the National Synchrotron Light Source at Brookhaven National Laboratory, which is sponsored by the US Department of Energy through contract number DE-AC02-76CH0006. For P. Xu and D. Heskett acknowledgement is made to the Donors of The Petroleum Research Fund, administered by the American Chemical Society, for partial support of this research. P. Xu and D. Heskett would also like to acknowledge partial support from the URI Council for Research. M.J. Bedzyk received partial support through ANL under DOE-BES contract No. W-31-109-ENG-38 and through the NSF-MRL program at NU under contract No. DMR-9120521.

Keywords

Alkali metals
Copper
Low index single crystal surfaces
Metallic surfaces
Photon absorption spectroscopy

ASJC Scopus subject areas

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

Access to Document

10.1016/0039-6028(95)00860-8

Cite this

@article{0695030e7f3347bd991a0893f4e51d3d,

title = "The geometric structure of Rb Cu(111) investigated with X-ray standing waves: Rb coverage dependence",

abstract = "We have carried out a back reflection X-ray standing wave (BRXSW) investigation of the geometric structure and degree of ordering of the system Rb Cu(111) as a function of Rb coverage. We observe no change in the Rb-Cu(111) perpendicular spacing as a function of coverage from saturation coverage of θ = 1 4 down to a coverage of θ = 1 16. We find a high degree of ordering of the Rb atoms perpendicular to the surface at all coverages, but a very low degree of order parallel to the Cu(111) surface. No differences in our results were detected for measurements at room temperature versus at ∼ 190 K.",

keywords = "Alkali metals, Copper, Low index single crystal surfaces, Metallic surfaces, Photon absorption spectroscopy",

author = "D. Heskett and P. Xu and L. Berman and Kao, {C. C.} and Bedzyk, {M. J.}",

note = "Funding Information: We would like to acknowledge fruitful discussions with J.N. Andersen and D.L. Adler. We would like to thank Dr. D. Zehner for providing the Cu(111) crystal used in this experiment. This research was carded out at the National Synchrotron Light Source at Brookhaven National Laboratory, which is sponsored by the US Department of Energy through contract number DE-AC02-76CH0006. For P. Xu and D. Heskett acknowledgement is made to the Donors of The Petroleum Research Fund, administered by the American Chemical Society, for partial support of this research. P. Xu and D. Heskett would also like to acknowledge partial support from the URI Council for Research. M.J. Bedzyk received partial support through ANL under DOE-BES contract No. W-31-109-ENG-38 and through the NSF-MRL program at NU under contract No. DMR-9120521.",

year = "1995",

month = dec,

day = "30",

doi = "10.1016/0039-6028(95)00860-8",

language = "English (US)",

volume = "344",

pages = "267--275",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier B.V.",

number = "3",

}

TY - JOUR

T1 - The geometric structure of Rb Cu(111) investigated with X-ray standing waves

T2 - Rb coverage dependence

AU - Heskett, D.

AU - Xu, P.

AU - Berman, L.

AU - Kao, C. C.

AU - Bedzyk, M. J.

N1 - Funding Information: We would like to acknowledge fruitful discussions with J.N. Andersen and D.L. Adler. We would like to thank Dr. D. Zehner for providing the Cu(111) crystal used in this experiment. This research was carded out at the National Synchrotron Light Source at Brookhaven National Laboratory, which is sponsored by the US Department of Energy through contract number DE-AC02-76CH0006. For P. Xu and D. Heskett acknowledgement is made to the Donors of The Petroleum Research Fund, administered by the American Chemical Society, for partial support of this research. P. Xu and D. Heskett would also like to acknowledge partial support from the URI Council for Research. M.J. Bedzyk received partial support through ANL under DOE-BES contract No. W-31-109-ENG-38 and through the NSF-MRL program at NU under contract No. DMR-9120521.

PY - 1995/12/30

Y1 - 1995/12/30

N2 - We have carried out a back reflection X-ray standing wave (BRXSW) investigation of the geometric structure and degree of ordering of the system Rb Cu(111) as a function of Rb coverage. We observe no change in the Rb-Cu(111) perpendicular spacing as a function of coverage from saturation coverage of θ = 1 4 down to a coverage of θ = 1 16. We find a high degree of ordering of the Rb atoms perpendicular to the surface at all coverages, but a very low degree of order parallel to the Cu(111) surface. No differences in our results were detected for measurements at room temperature versus at ∼ 190 K.

AB - We have carried out a back reflection X-ray standing wave (BRXSW) investigation of the geometric structure and degree of ordering of the system Rb Cu(111) as a function of Rb coverage. We observe no change in the Rb-Cu(111) perpendicular spacing as a function of coverage from saturation coverage of θ = 1 4 down to a coverage of θ = 1 16. We find a high degree of ordering of the Rb atoms perpendicular to the surface at all coverages, but a very low degree of order parallel to the Cu(111) surface. No differences in our results were detected for measurements at room temperature versus at ∼ 190 K.

KW - Alkali metals

KW - Copper

KW - Low index single crystal surfaces

KW - Metallic surfaces

KW - Photon absorption spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=0029507323&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029507323&partnerID=8YFLogxK

U2 - 10.1016/0039-6028(95)00860-8

DO - 10.1016/0039-6028(95)00860-8

M3 - Article

AN - SCOPUS:0029507323

SN - 0039-6028

VL - 344

SP - 267

EP - 275

JO - Surface Science

JF - Surface Science

IS - 3

ER -

The geometric structure of Rb Cu(111) investigated with X-ray standing waves: Rb coverage dependence

Abstract

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this