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Muonium quantum diffusion in cryocrystals

  • Session 1. Diffusion/Localization
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Abstract

In this paper we review our recent study on muonium (Mu) diffusion in simplest solids — Van der Waals cryocrystals. We give experimental evidence for the quantum nature of Mu diffusion in these matters. The results are compared with the current theory of quantum diffusion in insulators. The first direct observation of theT 7 power-law for the Mu hop rate (in solid nitrogen) is taken as confirmation of two-phonon scattering mechanism. In solid xenon the one-phonon interaction is shown to be dominant. Muonium diffusion in solid neon is discussed in terms of band-like motion. Finally, we report a dramatic effect of impurities on Mu quantum diffusion.

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Author notes

  1. Vyacheslav G. Storchak

    Present address: Kurchatov Institute, Kurchatov sq. 46, 123182, Moscow, Russia

Authors and Affiliations

  1. TRIUMF and Department of Physics, University of British Columbia, V6T 2A3, Vancouver, Canada

    Vyacheslav G. Storchak, Jess H. Brewer & Gerald D. Morris

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  1. Vyacheslav G. Storchak
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  2. Jess H. Brewer
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  3. Gerald D. Morris
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Storchak, V.G., Brewer, J.H. & Morris, G.D. Muonium quantum diffusion in cryocrystals. Hyperfine Interact 85, 31–43 (1994). https://doi.org/10.1007/BF02069400

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