HALL EFFECT IN DIRTY TYPE-2 SUPERCONDUCTORS

The Hall effect in the vortex state of a dirty type-II superconductor is re-examined microscopically. The inclusion of the kinetic-energy term of the moving pair (which was completely neglected by Caroli and Maki) in the chemical potential results in a large Hall effect in the vortex state consistent with experiments on Nb-Ta alloys by Niessen et al. Furthermore it is shown that for a dirty superconductor the Hall angle of the vortex state in the zero induction limit reduces to a constant value independent of temperature. © 1969 The American Physical Society.