Quantum diffusion in solid H2?Ne solutions |
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Authors: | Inna Ya Minchina Mikhail I Bagatskii Vadim G Manzhelii and Pavel I Muromtsev |
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Abstract: | Quantum diffusion in solid hydrogen containing 0.02–0.25 mol.% neon has been investigated by the calorimetric method in temperature
range 1–3 K. The concentrations of orthohydrogen were 0.23; 0.5 and 1 mol. %. The parameter studied was characteristic configurational
relaxation time τ. Heat capacity is very sensitive to space distribution of orthohydrogen molecules. Therefore, the determination
of configuration relaxation rate has been performed by observing the time dependence of heat capacity. A neon impurity in
the indicated concentration is observed to accelerate quantum diffusion in hydrogen. The magnitude of the effect diminishes
as the temperature increases. |
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