Abstract
We discuss here our realistic plane-wave scattering method for calculating the band structure of image and Shockley surface barrier states and resonances above and below the vacuum level. This method can be applied to any metal surface and is just as accurate for resonances as slates. The approach is the only one to date which is sufficiently accurate to enable determination of the surface barrier shape from a detailed match of calculated and measured band structure.
We show the calculated band structure for a transition metal surface W(OOl)-lxl where a Rydberg series of strong image resonances is predicted and two image resonances a few eV above the vacuum level are found to be particularly sensitive to the image-plane position and saturation of the barrier.
The above-vacuum level band structure to 10.5 eV is then calculated and image resonance bands are found to exist up to this energy. We conclude that above-vacuum image and Shockley resonances are likely to exist up to 10.5 eV for W(OOl)-lxl surface and this is a region which has not been explored to any great extent by experiment.
We then calculate the reflectivity of the 00 beam in very low energy electron diffraction (VLEED) for energy ranges and angles of incidence corresponding to the same values of reduced parallel momentum of the electron as occurs in calculations of the above-vacuum level surface barrier resonance band structure. The connection between surface barrier fine-structure scattering features in VLEED and the abovevacuum level surface barrier resonance band structure is discussed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
S. Ossicini, C.M. Bertoni and P. Gies, Europhys. Lett. 1, 661 (1986).
J.A. Appelbaum and D.R. Hamann, Phys. Rev. B 6, 1122 (1972).
N.D. Lang and W. Kohn, Phys. Rev. B 7, 3541 (1973).
J. Harris and R.O. Jones, J.Phys. C 6, 3585 (1973); J. Phys. C 7, 3751 (1974).
E. G. McRae, D.T. Pierce, G.-C. Wang and R. J. Celotta, Phys. Rev. B 24, 4230 (1981).
P.D. Johnson and N.V. Smith, Phys. Rev. B 27, 2527 (1983).
D. Straub and F.J. Himpsel, Phys. Rev. Lett.52, 1922 (1984).
V. Dose, W. Altmann, A. Goldmann, U. Kolac and J. Rogozik, Phys. Rev. Lett. 52, 1919 (1984).
N.V. Smith, Rep. Prog. Phys. 51, 1227 (1988).
W. Steinmann, Appl. Phys. A 49, 365 (1989).
M.N. Read, Phys. Rev. B 32, 2677 (1985).
J.-M. Baribeau, J.-D. Carette, P.J. Jennings and R.O. Jones, Phys. Rev. B 32, 6131 (1985).
J.-M. Baribeau, J. Lopez and J.-C. Le Bossé, J. Phys. C 18, 3083 (1985).
G. Hitehen, S.M. Thurgate and P.J. Jennings, Phys. Rev. 44, 3939 (1991).
A.S. Christopoulos and M.N. Read, Springer Series in Surface Sciences 24, 271 (1991).
M.N. Read and A.S. Christopoulos, Phys. Rev. B 45 (1992) to appear.
M.N. Read and A.S. Christopoulos, to be published.
E.G. McRae, Rev. Mod. Phys. 51, 541 (1979).
E.G. McRae, Surface Sci. 25,491 (1971).
J.C. Le Bossé, J. Lopez, C. Gaubert, Y. Gaulher and R. Baudoing, J. Phys. C 15, 6087 (1982).
E.G. McRae and C.W. Caldwell, Surf. Sci. 57, 766 (1976).
R.F. Willis, B. Feuerbacher and N. Egede Christensen, Phys. Rev. Lett. 38, 1087 (1977).
M.N. Read and A.S. Christopoulos, Springer Series in Surface Sciences 11, 26 (1988).
M.N. Read and A.S. Christopoulos, Phys. Rev. B 37, 10407 (1988).
W. Drube, D. Straub, F.J. Himpsel, P. Soukiassian, C.L. Fu and AJ. Freeman, Phys. Rev. B 34, 8989 (1986).
I.L. Krainsky J. Vac. Sci. Techl. A5 735 1987.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1993 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Read, M.N., Christopoulos, A.S. (1993). Surface Barrier States and Resonances of Metals. In: Howe, R.F., Lamb, R.N., Wandelt, K. (eds) Surface Science. Springer Proceedings in Physics, vol 73. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84933-6_10
Download citation
DOI: https://doi.org/10.1007/978-3-642-84933-6_10
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-84935-0
Online ISBN: 978-3-642-84933-6
eBook Packages: Springer Book Archive