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On the Diffusion of H and D in Pd between 50 and 300 °K
Author(s) -
Arons R. R.,
Tamminga Y.,
de Vries G.
Publication year - 1970
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19700400112
Subject(s) - activation energy , jump , diffusion , quantum tunnelling , thermodynamics , phase (matter) , materials science , chemistry , condensed matter physics , physics , quantum mechanics , organic chemistry
From 50 to 300 °K the jump rates of H and D in the β‐phase of Pd are described by the sum of two thermally activated processes. At higher temperatures the activation energy is found to be 2500 °K, whereas at low temperatures values of 1750 and 1450 °K for H and D, respectively, are obtained. The results are explained by tunneling from activated states.