Abstract
Plastic deformation of lead single crystals is investigated in the temperature range 1.6 to 10 K in the normal and – below the critical temperature – superconducting state. Using a pulse loading and pulse heating technique, plastic deformation is shown to be thermally assisted in this temperature range. The appearance of discontinuous flow in the superconducting state below 3 K is interpreted in terms of the onset of the inertial mechanism of dislocation motion. Conditions for this mechanism to become operative are assessed analytically. [Russian Text Ignored].
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