Elsevier

Physics Letters A

Volume 155, Issues 4–5, 13 May 1991, Pages 337-341
Physics Letters A

The quantum diffusion of isotopic impurities in solid hydrogen

https://doi.org/10.1016/0375-9601(91)90495-TGet rights and content

Abstract

The diffusion of HD molecules, present as isotropic impurities in solid hydrogen, is calculated in the temperature range where the quantum tunneling of the impurities is hindered by scattering from vacancies. The vacancy-impurity scattering cross section is calculated using a classical approximation. The results are compared with recent NMR measurements of the impurity diffusion at low temperatures.

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