Josephson Current in f-Wave Superconductor/f-Wave Superconductor Junctions

摘要

We study the temperature T and the phase of the Josephson critical current I(φ)by taking into account theroughness scattering effect at inerface in an f-wave superconductor(S)/Insulator layer(I)/f-wave superconductor(S)junction.It is found that the Josephson critical currents in f-wave S/f-wave S,the barrier strength and the roughnessstrength at inerface always suppress the Andreev reflection.When α=β,the phase dependence of the Josephson currentI(φ)between two f-wave S is predicted to be simφ;particularly,when α≠β,the phase dependence of the Josephsoncurrent I(φ)between two f-wave superconductors is not predicted to be sin φ and with the barrier strength increasing,the period of the I((φ)turns decrease.