Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-27T02:35:01.887Z Has data issue: false hasContentIssue false
  • English
  • Français

Surface Structure Determination of C(2×2) N2/Ni(100) and Low and Intermediate Coverages of Co/Cu(111) by Angle-Resolved Photoemission Fine Structure (Arpefs) Using Synchrotron Radiation

Published online by Cambridge University Press:  15 February 2011

E. J. Moler ,
W. R. A. Huff ,
S. A. Kellar ,
Z. Hussain ,
Y. F. Chen  and
D. A. Shirley
E. J. Moler
Affiliation:
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, contact: [email protected]
W. R. A. Huff
Affiliation:
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, contact: [email protected]
S. A. Kellar
Affiliation:
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, contact: [email protected]
Z. Hussain
Affiliation:
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, contact: [email protected]
Y. F. Chen
Affiliation:
Depts. of Chemistry and Physics, Pennsylvania State University, University Park, PA 16802
D. A. Shirley
Affiliation:
Depts. of Chemistry and Physics, Pennsylvania State University, University Park, PA 16802
Get access

Abstract

We have determined the adsorption site and interlayer spacings of c(2×2) N2/Ni(100),(√3 × √3)R30° and (1.5 × 1.5)R18° CO adsorbed on Cu(111), using ARPEFS and a full Multiple-Scattering, Spherical Wave (MSSW) calculation program. The nitrogen molecule stands upright at an atop site, with a N-Ni bond length of 2.25(1) Å, a N-N bond length of 1.10(7) Å, and a first layer Ni-Ni spacing of 1.76(4) Å. The C-Cu bond length is 1.91 (1) Å in the (√3 × √3)R30° phase and 1.91(2) Å in the (1.5 × 1.5)R18° phase. The first layer Cu-Cu spacing is 2.07(3) Å in the (√3 × √3)R30° phase. The first layer Cu-Cu spacing in the (1.5 × 1.5)R18° phase is 2.01(4) Å, a contraction of 3 % from the clean metal value of 2.07 Å.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 440: Symposia CA – Structure and Evolution of Surfaces , 1996 , 45
Copyright
Copyright © Materials Research Society 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Barton, J. J., Bahr, C. C., Robey, C. C. et al., “Adsorbate-geometry determination by measurement and analysis of angle-resolved-photoemission extended-fine-structure data: application to c(2*2)S/Ni(001),” Physical Review B 34 (6), 3807–3819 (1986).Google Scholar
2 Bahr, C. C., Barton, J. J., Hussain, Z. et al., “Geometry of (2*2)S/Cu(001) determined with use of angle-resolvedphotoemission extended fine structure,” Physical Review B 35 (8), 3773–3782 (1987).Google Scholar
3 Terminello, L. G., Zhang, X. S., Kim, S. et al., Physical Review B 38, 3879 (1988).Google Scholar
4 Barton, J. J., Robey, S. W., Bahr, C. C. et al., “Surface Structure Determination with ARPEFS,” in The Structure of Surfaces(Springer Series in Surface Sciences), edited by Hove, M. A. Van and Tong, S. Y. (Springer Verlag, New York, 1985), Vol. 2, pp. 191–198.Google Scholar
5 Huang, Z., ”Structural Studies of Molecular Metallic Overlayers Using Angle-Resolved Photoemission Extended Fine Structure,” Ph. D. Thesis, University of California, Berkeley, 1992.Google Scholar
6 Rehr, J. and Albers, , “Scattering-matrix formulation of curved-wave multiple-scattering theory: Application to x-rayabsorption fine structure,” Physical Review B 41 (12), 8139 (1990).Google Scholar
7 Wang, L. Q., Wittenau, A. E. Schach von, Ji, Z. G. et al., “c(2×2) Cl/Cu(001) adsorbate geometry and substratesurface relaxation using low-temperature angle-resolved photoemission extended fine structure,” Physical Review B 44, 8241 (1991).Google Scholar
8 Stohr, J. and Jaeger, G., Physical Review B 26, 4111 (1982).Google Scholar
9 Grunze, M., Dowben, P. A., and Jones, R. G., ‘Thermodynamic Measurements for N/sub 2/ Adsorption on Ni(100),” Surface Science 141,455–472 (1984).Google Scholar
10 Shikha, Varma and Dowben, P. A., ”The effect of lateral interactions on the thermal desorption of N2 from Ni(100),” Journal of Vacuum Science and Technology A 8 (3), 2605 (1990).Google Scholar
11 Andersson, S. and Pendry, J. B., ”The structure of c(2×2) CO adsorbed on copper and nickel (001) surfaces,” Journal of Physics C 13, 3547–3561 (1980).Google Scholar
12 Antonsson, H., Nilsson, A., and Martensson, N., ”Vibrational Motion and Geometrical Structure in Adsorbed CO Studied by Core Level Photoelectron Spectroscopy,” Journal of Electron Spectroscopy and Related Phenomena 54/55, 601–613 (1990).Google Scholar
13 Bao, S., Xu, R., Xu, C. Y. et al., “HREELS and ARUPS investigation of the coadsorption of CO and K on Cu(111),” Surface Science 271, 513–518 (1992).Google Scholar
14 Demuth, J. E. and Eastman, D. E., ”Photoemission Observation of Two Molecular Phases of CO Absorbed on Cu(100),” Solid State Communications 18, 1497–1500 (1976).Google Scholar
15 Hirschmugl, C. J., Williams, G. P., Hoffmann, F. M. et al., “Adsorbate-Substrate Resonant Interactions Observed for CO on Cu(100) and (111) in the Far-IR using Synchrotron Radiation,” Journal of Electron Spectroscopy and Related Phenomena 54/55, 109–114 (1990).Google Scholar
16 Hollins, P. and Pritchard, J., ”Interactions of CO Molecules Adsorbed on Cu( 111),” Surface Science 89, 486–495 (1979).Google Scholar
17 Huang, Z. Q., Hussain, Z., Huff, W. R. A. et al., “Structural determination of p2mg(2×1)CO/Ni(110) with the use of angle-resolved photoemission extended fine structure,” Physical Review B 48 (3), 1696–1710 (1993).Google Scholar
18 Raval, R., Parker, S. F., Pemble, M. E. et al., “FT-RAIRS, EELS and LEED Studies of the Adsorption of Carbon Monoxide on Cu(111),” Surface Science 203, 353–377 (1988).Google Scholar
19 Sandell, A., Bennich, P., Nilsson, A. et al., “Chemisorption of CO on Cu(100), Ag(110), and Au(110),” Surface Science 310, 16–26 (1994).Google Scholar
20 Yodh, A. G. and Tom, H. W., ”Picosecond linear vibrational spectroscopy of CO adsorbed on Cu(111) by phasesensitive polarization modulation,” Physical Review B 45 (24), 302–307 (1992).Google Scholar
21 Kirstein, W., Kruger, B., and Theime, F., ”CO Adsorption Studies on Pure and Ni-covered Cu(111) Surfaces,” Surface Science 176, 505–529 (1986).Google Scholar
22 Hinch, B. J. and Dubois, L. H., ”Time-Resolved EELS Studies of Molecular Surface Residence Times: the CO/Cu(111) Desorption System,” Journal of Electron Spectroscopy and Related Phenomena 54/55, 1990 (1990).Google Scholar
23 Rong, C. and Satoko, C., ”Adsorption of N2, CO, and No on Fe(111) Surface: Model Calculation by DV-X-Alpha Method,” Surface Science 223, 101–118 (1989).Google Scholar
24 Paul, J. and Rosen, A., ”Electronic Structure of CO adsorbed on a Cu(111) surface analyzed with molecular cluster models.,” Physical Review B 26 (8), 4073–4077 (1982).Google Scholar
25 Pavao, A. C., Braga, M., Taft, C. A. et al., “Theoretical Study of the CO interaction with 3d-metal surfaces,” Physical Review B 43 (9), 6962–6966 (1991).Google Scholar
26 Bauschlicher, C. W., ”A theoretical study of CO/Cu(100),” Journal of Chemical Physics 101 (4), 3250–3254 (1994).Google Scholar
27 Miyoshi, E., Sakai, Y., and Katsuki, S., ”A molecular orbital study for CO coadsorbed with K on Cu(001) and Ag(001),” Surface Science 242, 1991531–537 (1991).Google Scholar
28 Nygren, M. A. and Siegbahn, P. E. M., ”Theoretical Study of Chemisorption of CO on Copper Clusters,” Journal of Chemical Physics 96, 7579–7584 (1992).Google Scholar
29 Santen, R. A. Van, ”Coordination of Carbon Monoxide to Transition-metal Surfaces,” Journal of the Chemical Society, Faraday Transactions 81, 1915–1934 (1987).Google Scholar
30 Anders, Nilsson, Helena, Tillborg, and Nils, Martensson, “Electronic Structure of Adsorbates from Core-level Shake-up Spectra: N2 on Ni(100),” Physical Review Letters 67 (8), 1015 (1991).Google Scholar
31 MacLaren, J. M., Pendry, J. B., Rous, P. J. et al., Surface Crystallographic Information Service: A Handbook of Surface Structures (D. Reidel Publishing Company, Boston, 1987).Google Scholar