Tunneling Effects in Dirty-Superconductor : Semiconductor Junctions

Abstract

Superconducting tunneling effects were observed for Pb_0.7In_0.3–GaAs junctions in the magnetic field which was varied from zero to upper critical fields. Results are explained well with de Gennes′ theory above 0.7H_c2 and 0.56_c3, if we take τ, the correlation time, a parameter. Gap parameters are also explained well with usual theories of the second kind superconductivity.