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Dislocation Mobility in Germanium
Phys. Rev. 131, 54 – Published 1 July, 1963
DOI: https://doi.org/10.1103/PhysRev.131.54
Abstract
The stress and temperature dependence of the glide velocity of individual dislocations in pure germanium has been measured by means of an etch-pit technique. The motion may be described by a thermal activation energy which, for 60° dislocations, varies from 1.49 eV at 8.0 kg/ to 2.25 eV at 0.8 kg/. For screws, it is 1.47 eV independent of stress. At constant temperature, the velocity varies with stress in a complex manner which is not adequately accounted for by previous theories alone.
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