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Elastic and inelastic scattering of slow positrons from a LiF(100) surface

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Abstract

The intensity profile for the elastic specular reflection of 5–100 eV positrons from a LiF(100) surface (ang1e of incidence 45°) has been measured using a simple time-of-flight spectrometer. The profile exhibits strong maxima below 25 eV and a smaller peak at 57 eV. Positron energy loss spectra have also been measured for a range of incident energies by retarding field analysis of the scattered beam. The mean energy loss appears to increase with increasing incident beam energy. Both the elastic and inelastic results are compared with similar data for slow-electron scattering obtained with the same apparatus.

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Author notes

  1. P. G. Coleman

    Present address: School of Mathematics and Physics, University of East Anglia, NR4 7TJ, Norwich, UK

Authors and Affiliations

  1. Center for Positron Studies, Department of Physics, The University of Texas at Arlington, 76019, Arlington, TX, USA

    D. R. Cook, T. N. Horsky & P. G. Coleman

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  1. D. R. Cook
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  2. T. N. Horsky
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  3. P. G. Coleman
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Cook, D.R., Horsky, T.N. & Coleman, P.G. Elastic and inelastic scattering of slow positrons from a LiF(100) surface. Appl. Phys. A 34, 237–242 (1984). https://doi.org/10.1007/BF00616578

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  • DOI: https://doi.org/10.1007/BF00616578

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