Structural-order effects in low-energy electron transmission spectra of condensed Ar, Kr, Xe, <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">N</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span>, CO, and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span>

G. Bader; G. Perluzzo; L. G. Caron; L. Sanche

doi:10.1103/PhysRevB.30.78

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Structural-order effects in low-energy electron transmission spectra of condensed Ar, Kr, Xe, $N_{2}$ , CO, and $O_{2}$

Départment de Physique et de Mathématiques, Université de Moncton, Moncton, New Brunswick, Canada E1A 3E9

Groupe C.R.M. en Sciences des Radiations, Départment de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine, Université de Sherbrooke, Sherbrooke, Québec, Canada J1H 5N4

Centre de Recherche en Physique du Solide et Départment de Physique, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1

Groupe C.R.M. en Sciences des Radiations, Départment de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine, Université de Sherbrooke, Sherbrooke, Québec, Canada J1H 5N4

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Phys. Rev. B 30, 78 – Published 1 July, 1984

DOI: https://doi.org/10.1103/PhysRevB.30.78

Abstract

Low-energy electron transmission spectroscopy is sensitive to crystal order and electronic band structure. The latter is responsible for minima in transmitted current whenever the incident electron energy coincides with that of a band gap. We propose a quasi-free-electron model to describe the experimental results for Ar, Kr, Xe, $N_{2}$ , CO, and $O_{2}$ films deposited on Pt. It contains two parameters: the energy of the bottom of the conduction band $V_{0}$ and an average electron effective mass $m^{*}$ . The onset of inelastic processes is extremely valuable in determining $V_{0}$ . Further knowledge of the reciprocal-lattice vectors allows a reliable fit to $m^{*}$ and $V_{0}$ . The results for Xe join smoothly to those of higher-energy low-energy electron diffraction experiments. We are also able to correlate the average atomic structure factor to the minima in the elastic mean free path of Xe.

References (24)

L. Sanche, G. Bader, and L. G. Caron, J. Chem. Phys. 76, 4016 (1982)
L. Sanche, J. Chem. Phys. 71, 4860 (1979)
G. Bader, G. Perluzzo, L. G. Caron, and L. Sanche, Phys. Rev. B 26, 6019 (1982)
L. Sanche, G. Perluzzo, G. Bader, and L. G. Caron, J. Chem. Phys. 77, 3285 (1982)
G. Perluzzo, G. Bader, L. G. Caron, and L. Sanche, Phys. Rev. B 26, 3976 (1982)
J. B. Pendry, Low Energy Electron Diffraction (Academic, New York, 1979)
A. Ignatiev, A. V. Jones, and T. N. Rhodin, Surf. Sci. 30, 543 (1982)
A. Ignatiev and T. N. Rhodin, Phys. Rev. B 8, 893 (1973)
E. G. McRae, Surf. Sci. 25, 491 (1971)
G. Capart, Surf. Sci. 13, 361 (1969)
D. S. Boudreaux and V. Heine, Surf. Sci. 8, 426 (1967)
L. Sanche and M. Michaud, Phys. Rev. Lett. 47, 1008 (1981), and results unpublished
L. Sanche and M. Michaud, Phys. Rev. B 27, 3856 (1983) Chem. Phys. Lett. 84, 497 (1981)
N. Schwentner, M. Shibowski, and W. Steinmann, Phys. Rev. B 8, 2965 (1973)
N. Schwentner, F. J. Himpsel, V. Saile, M. Shibowski, W. Steinmann, and E. E. Koch, Phys. Rev. Lett. 34, 528 (1975)
N. Schwentner and E. E. Koch, Phys. Rev. B 14, 4687 (1976)
L. Sanche and G. J. Schulz, Phys. Rev. A 5, 1672 (1972)
A. Stamatovic and G. J. Schulz, Rev. Sci. Instrum. 41, 423 (1970)
T. E. Madey, Surf. Sci. 33, 355 (1972)
T. E. MadeyHandbook at Chemistry and Physics, 43rd ed., edited by D. D. Hodgman, R. C. Weast, and S. N. Selby (Chemical Rubber, Cleveland, 1961)
G. Herzberg, Spectra of Diatomic Molecules (Van Nostrand, New York, 1950)
L. Resca and S. Rodriguez, Phys. Rev. B 17, 3334 (1978)
C. Gaubert (private communication)

[c2] L. Sanche, G. Bader, and L. G. Caron, J. Chem. Phys. 76, 4016 (1982)

[c3] L. Sanche, J. Chem. Phys. 71, 4860 (1979)

[c4] G. Bader, G. Perluzzo, L. G. Caron, and L. Sanche, Phys. Rev. B 26, 6019 (1982)

[c5] L. Sanche, G. Perluzzo, G. Bader, and L. G. Caron, J. Chem. Phys. 77, 3285 (1982)

[c6] G. Perluzzo, G. Bader, L. G. Caron, and L. Sanche, Phys. Rev. B 26, 3976 (1982)

[c7] J. B. Pendry, Low Energy Electron Diffraction (Academic, New York, 1979)

[c8] A. Ignatiev, A. V. Jones, and T. N. Rhodin, Surf. Sci. 30, 543 (1982)

[c9] A. Ignatiev and T. N. Rhodin, Phys. Rev. B 8, 893 (1973)

[c10] E. G. McRae, Surf. Sci. 25, 491 (1971)

[c11] G. Capart, Surf. Sci. 13, 361 (1969)

[c12] D. S. Boudreaux and V. Heine, Surf. Sci. 8, 426 (1967)

[c13] L. Sanche and M. Michaud, Phys. Rev. Lett. 47, 1008 (1981), and results unpublished

[c14] L. Sanche and M. Michaud, Phys. Rev. B 27, 3856 (1983) Chem. Phys. Lett. 84, 497 (1981)

[c15] N. Schwentner, M. Shibowski, and W. Steinmann, Phys. Rev. B 8, 2965 (1973)

[c16] N. Schwentner, F. J. Himpsel, V. Saile, M. Shibowski, W. Steinmann, and E. E. Koch, Phys. Rev. Lett. 34, 528 (1975)

[c17] N. Schwentner and E. E. Koch, Phys. Rev. B 14, 4687 (1976)

[c18] L. Sanche and G. J. Schulz, Phys. Rev. A 5, 1672 (1972)

[c19] A. Stamatovic and G. J. Schulz, Rev. Sci. Instrum. 41, 423 (1970)

[c20] T. E. Madey, Surf. Sci. 33, 355 (1972)

[c21] T. E. MadeyHandbook at Chemistry and Physics, 43rd ed., edited by D. D. Hodgman, R. C. Weast, and S. N. Selby (Chemical Rubber, Cleveland, 1961)

[c22] G. Herzberg, Spectra of Diatomic Molecules (Van Nostrand, New York, 1950)

[c23] L. Resca and S. Rodriguez, Phys. Rev. B 17, 3334 (1978)

[c24] C. Gaubert (private communication)

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Structural-order effects in low-energy electron transmission spectra of condensed Ar, Kr, Xe, $N_{2}$ , CO, and $O_{2}$

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Structural-order effects in low-energy electron transmission spectra of condensed Ar, Kr, Xe, N2, CO, and O2

Abstract

References (24)

Structural-order effects in low-energy electron transmission spectra of condensed Ar, Kr, Xe, $N_{2}$ , CO, and $O_{2}$