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 is the same within experimental error. The activation energy for hydrogen diffusion is equal to the energy difference 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