Electrical Resistivity Measurements of Vanadium and Iron Deformed at 4.2°K

Abstract

The recovery of electrical resistivity in polycrystalline vanadium and iron, deformed at 4.2°K, has been studied in the temperature range of 4.2° to 440°K. The initial recovery stage (Stage I) is attributed to the dislocation rearrangement and the stage II recovery is also considered to be due to the migration or dissociation of interstitial clusters in f.c.c metals (Cu, Au and Al).
The effect of a deformation on the flux line in the mixed state of type-II superconductor, is also studied. The movement of flux lines in the medium containing defects is discussed on the analogy of movement of dislocations.