Long-range effect of a Zeeman field on the electric current through the helical metal-superconductor interface in Andreev interferometer

Abstract

It is shown that the spin-orbit and Zeeman interactions result in phase shifts of Andreev-reflected holes in disordered topological insulator, or normal Rashba spin-orbit-coupled wires, which are in a contact with an s-wave superconductor. Due to interference of the holes reflected through different paths in Andreev interferometer the electric current through the contact varies depending on the strength and direction of the Zeeman field. It also depends on mutual orientations of Zeeman fields in different shoulders of the interferometer. Such a nonlocal effect is a result of the long-range coherency caused by the superconducting proximity effect. This current has been calculated within the semiclassical theory for Green functions of a dirty system.

7 pages, final version

References in corpus (10)

• Highly efficient and tuneable spin-to-charge conversion through Rashba coupling at oxide interfaces
• Anomalous Josephson effect induced by spin-orbit interaction and Zeeman effect in semiconductor nanowires
• Anomalous Josephson Current in Junctions with Spin-Polarizing Quantum Point Contacts
• Observation of Inverse Edelstein Effect in Rashba-Split 2DEG between SrTiO3 and LaAlO3 at Room Temperature
• Strongly spin-orbit coupled two-dimensional electron gas emerging near the surface of polar semiconductors
• Theory of 2D superconductor with broken inversion symmetry
• Magnetoelectrics in Disordered Topological Insulator Josephson Junctions
• Quasiclassical theory for the superconducting proximity effect in Dirac materials
• Andreev reflection in s-type superconductor proximized 3D topological insulator
• Magnetoelectric coupling in superconductor-helimagnet heterostructures

Cited by in corpus (6)

• Transport in two-dimensional topological materials: recent developments in experiment and theory
• Spontaneous supercurrent and $\varphi$0 phase shift parallel to magnetized topological insulator interfaces
• Magnetoelectric effects in Josephson junctions
• Proximity-induced equilibrium supercurrent and perfect superconducting diode effect due to band asymmetry
• Anomalous Andreev interferometer: Study of an anomalous Josephson junction coupled to a normal wire
• Signatures of Long-Range Spin-Triplet Component in Andreev Interferometer