Effect of Dislocations on Self-Diffusion in Germanium
- 1 January 1962
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 125 (1), 30-32
- https://doi.org/10.1103/physrev.125.30
Abstract
The effect of dislocations on the rate of diffusion of radioactive in intrinsic germanium single crystals has been studied at temperatures near 740°C. The dislocations were introduced by either of two methods: (A) distorting the surface by lapping under pressure, thus producing a network of dislocations; (B) bending the specimens so as to introduce up to 2× parallel edge dislocations per . Both deformation treatments produce an enhancement of self-diffusion relative to that in undeformed crystals. In both cases the diffusion can be described in terms of an enhanced volume diffusion with apparent diffusion coefficients up to 38% larger than the value for undeformed intrinsic specimens.
Keywords
This publication has 4 references indexed in Scilit:
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- On Hart's theory on the role of dislocation in bulk diffusionActa Metallurgica, 1958
- Anisotropy of grain boundary self-diffusionActa Metallurgica, 1956
- Calculation of Diffusion Penetration Curves for Surface and Grain Boundary DiffusionJournal of Applied Physics, 1951