Quantum diffusion in solid deuterium
M. I. Bagatskiı̆Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovА. И. КривчиковPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovV. G. Manzheliı̆Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovI. Ya. MinchinaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovP. I. MuromtsevPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kov
ABI
Abstract
Quantum diffusion (configurational relaxation) has been detected in solid deuterium. Evidence of its existence has been obtained in calorimetric studies of deuterium containing 2.8% paradeuterium. The characteristic configurational relaxation time τ = 630±50 h (T = 1.65 °K) is in good agreement with the predictions of the resonance-conversion model of Oyarzun and Van Kranendonk. The conversion rate constant in deuterium is determined to be k = 4.8⋅10−4 h−1.
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