Influence of spin–orbit coupling on differential conductance of normal metal/ferromagnetic p wave superconductor junctions

•The normal metal/ferromagnetic p wave superconductor junction.•The interface spin–orbit coupling.•The split conductance peaks.•The asymmetry of the conductance spectrum.

The extended Blonder–Tinkham–Klapwijk model is applied to studying tunneling conductance in normal metal/ferromagnetic p wave superconductor junctions. It is found that the spin–orbit scattering at the interfaces significantly affects the tunneling conductance. The interface spin–orbit coupling (SOC) suppresses the split conductance peaks in the N/ferromagnetic px wave superconductor junction and enhances the zero-bias conductance dip (ZBCD) of py wave superconductor junction. The SOC gives rise to the asymmetry of the conductance spectrum in the ferromagnetic px + py wave superconductor junctions.