The influence of the spin-dependent phases of tunneling electrons on the conductance of a point ferromagnet/isolator/d-wave superconductor contact

Abstract

The influence of the spin-dependent phase shifts (SDPS) associated to the electronic reflection and transmission amplitudes acquired by electrons upon scattering on the potential barrier on the Andreev reflection probability of electron and hole excitations for a ferromagnet/isolator/d-wave superconductor (FIS) contact and the charge conductance of the FIS contact is studied. Various superconductor orientations are considered. It is found that SDPS can suppress the zero-potential peak and restore finite-potential peaks in the charge conductance of the F/I/d-wave superconductor contact for the (110) orientation of the d-wave superconductor and, on the contrary, can restore the zero-potential peak and suppress finite-potential peaks for the $\{100\}$ orientation of the d-wave superconductor.

10 pages, 4 figures

References in corpus (6)

• Coherent spin transport through a 350-micron-thick Silicon wafer
• Pairing symmetry conversion by spin-active interfaces in superconducting junctions
• Theory of superconducting and magnetic proximity effect in S$\mid$F structures with inhomogeneous magnetization textures and spin-active interfaces
• Direct demonstration of decoupling of spin and charge currents in nanostructures
• Conductance and current noise of a superconductor/ferromagnet quantum point contact
• The influence of spin-dependent phases of tunneling electrons on the conductance of a point ferromagnet/isolator/superconductor contact