Tunnelling between non-centrosymmetric superconductors with significant spin-orbit splitting studied theoretically within a two-band treatment

Abstract

Tunnelling between non-centrosymmetric superconductors with significant spin-orbit splitting is studied theoretically in a two-band treatment of the problem. We find that the critical Josephson current may be modulated by changing the relative angle between the vectors describing absence of inversion symmetry on each side of the junction. The presence of two gaps also results in multiple steps in the quasiparticle current-voltage characteristics. We argue that both these effects may help to determine the pairing states in materials like CePt${}_3$Si, UIr and Cd${}_2$Re${}_2$O${}_7$. We propose experimental tests of these ideas, including scanning tunnelling microscopy.

5 pages, 1 figure. Minor changes. Some new references added. Journal-ref. added

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Cited by in corpus (23)

• Types of topological surface states in nodal noncentrosymmetric superconductors
• Surface density of states and topological edge states in non-centrosymmetric superconductors
• Superconductivity and Magnetism in Non-centrosymmetric System: Application to CePt_3Si
• Quantum transport in noncentrosymmetric superconductors and thermodynamics of ferromagnetic superconductors
• Magnetic Properties in Non-centrosymmetric Superconductors with and without Antiferromagnetic Order
• Proximity effect with noncentrosymmetric superconductors
• Effects of impurities on superconductivity in noncentrosymmetric compounds
• Fractional flux quanta at intrinsic metallic interfaces of noncentrosymmetric superconductors
• Tunneling currents in ferromagnetic systems with multiple broken symmetries
• Josephson Effect in Noncentrosymmetric Superconductor Junctions
• Josephson Effect and Triplet--Singlet Ratio of Non--centrosymmetric Superconductors
• Unambiguous probe of parity-mixing of Cooper pairs in noncentrosymmetric superconductors
• Orbital tunable 0-$\pi$ transitions in Josephson junctions with noncentrosymmetric topological superconductors
• Nontrivial interplay between superconductivity and spin-orbit coupling in non-centrosymmetric ferromagnets
• Nature and symmetry of the order parameter of the noncentrosymmetric superconductor Li2Pt3B
• Transfer-matrix approach to multiband Josephson junctions
• Josephson effect in thin-film superconductor/insulator/superconductor junctions with misaligned in-plane magnetic fields
• Josephson response of a conventional and a noncentrosymmetric superconductor coupled via a double quantum dot
• Using Josephson junctions to determine the pairing state of superconductors without crystal inversion symmetry
• Josephson Effect between Conventional and Rashba Superconductors
• Proximity effect of time-reversal symmetry broken non-centrosymmetric superconductors
• Anisotropic differential conductance of a mixed parity superconductor/ferromagnet structure
• Bulk-boundary correspondence in Josephson Junctions