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Thermal hopping ofμ + between “FμF” centres in NaF

  • Muonium in Semiconductors and Insulators
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Abstract

Strongly hydrogen-bonded diamagnetic “FμF” centres are formed by theμ + in a wide variety of fluoride crystals. Hydrogen atoms are expected to form similar “FHF” complexes. Through the “motional narrowing” of the zero-field muon relaxation function in NaF, we have observed an Arrhenius temperature dependence of the dissociation rate of theFμF complex, yielding a binding energy of 1700 (200) K for theμ + in theFμF centre.

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Brewer, J.H., Harshman, D.R., Keitel, R. et al. Thermal hopping ofμ + between “FμF” centres in NaF. Hyperfine Interact 32, 677–682 (1986). https://doi.org/10.1007/BF02394972

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