Tunneling Conductance in Ferromagnetic Metal/Normal Metal/Spin-Singlets-Wave Ferromagnetic Superconductor Junctions

摘要

In the framework of scattering theory, we study the tunneling conductance in a system including two junctions, ferromagnetic metalormal metal/ferromagnetic superconductor, where ferromagnetic superconductor is in spin-singlets-wave pairing state. The non-magnetic normal metal is placed in the intermediate layer with the thickness (L) which varies from 1 nm to 10000 nm. The interesting result which we have found is the existence of oscillations in conductance curves. The period of oscillations is independent of FS and FN exchange field while it depends onL. The obtained results can serve as a useful tool to determine the kind of pairing symmetry in ferromagnetic superconductors.