Electrical Resistivity Measurements of F.C.C. Metals Deformed at 4.2°K

Abstract
The recovery of the electrical resistivity of polycrystalline 99.999% Au, Cu and Al, deformed at liquid helium temperature by elongation, was studied in the temperature range of 4.2° to 200°K. Initial recovery was followed in general by the large recovery stage for the three metals. The initial recovery stage was attributable to the dislocation rearrangement. The latter was considered to be due to annihilation of interstitial type defects. The results are discussed on the basis of current theories.