Relaxation Process Due to Long-Range Diffusion of Hydrogen and Deuterium in Niobium

G. Schaumann, J. Völkl, and G. Alefeld
Phys. Rev. Lett. 21, 891 – Published 23 September 1968
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Abstract

We have applied a new method for the determination of diffusion coefficients to hydrogen and deuterium in niobium. The activation energies for both isotopes are comparatively small and differ by about 20%, whereas D0 is the same within experimental error. The activation energy for hydrogen diffusion is equal to the energy difference ωH=114±6 meV between the ground state and the first excited state of the hydrogen atom in solution.

  • Received 23 August 1968

DOI:https://doi.org/10.1103/PhysRevLett.21.891

©1968 American Physical Society

Authors & Affiliations

G. Schaumann*, J. Völkl, and G. Alefeld

  • Institut für Festkörper- und Neutronenphysik, Kernforschungsanlage Jülich, 517 Jülich, Germany

  • *Work is based on part of a thesis by one of us (G. S).

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Issue

Vol. 21, Iss. 13 — 23 September 1968

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