Abstract
Following the Mijnarends method, the momentum density distribution ϱ(p) of annihilation radiation in β-Sn has been determined by unfolding the Mogensen and Trumpy experimental data. Some hypotheses concerning the shape of the β-Sn Fermi surface as well as the characteristic structure of the strongly anisotropic enhancement factor are suggested.
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The authors wish to thank Dr. O.Mogensen and Prof. G.Trumpy for supplying their original experimental data. They are also grateful to Prof. S.Berko for many interesting and thoughtful remarks during the presentation of the work [9] at the Fourth Conference on Positron Annihilation.
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Kontrym-Sznajd, G., Šob, M. & Stachowiak, H. Determination of electronic momentum densities and the Fermi surface of white tin by positron annihilation. Czech J Phys 29, 1124–1135 (1979). https://doi.org/10.1007/BF01596111
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DOI: https://doi.org/10.1007/BF01596111