抄録
A new theory of dislocation motion through the Peierlsfield in metals is described. First, quantized vibrations of thelattice containing a dislocation have been considered. Then, thequantum theory of resonance-type transfer of dislocations has beenworked out for two cases; electrons have no effect on the transfer inone case, and the nonadiabatic interaction of electrons withdislocations decreases the probability of the transfer in theother. Quantitative agreements have been obtained between theory andexperiment on the dislocation velocity vs. applied shear stress, theyield stress vs. temperature in copper, and the anomalous yield stressat low temperatures below 50 K of Cu--Al dilute alloys. The presenttheory applied to the loss of the strength of superconducting metalshas succeeded in explaining the experimentally observed temperaturedependence of this phenomenon in lead.
