Ballistic Josephson junctions in the presence of generic spin dependent fields

Abstract

Ballistic Josephson junctions are studied in the presence of a spin-splitting field and spin-orbit coupling. A generic expression for the quasi-classical Green's function is obtained and with its help we analyze several aspects of the proximity effect between a spin-textured normal metal (N) and singlet superconductors (S). In particular, we show that the density of states may show a zero-energy peak which is a generic consequence of the spin-dependent couplings in heterostructures. In addition we also obtain the spin current and the induced magnetic moment in a SNS structure and discuss possible coherent manipulation of the magnetization which results from the coupling between the superconducting phase and the spin degree of freedom. Our theory predicts a spin accumulation at the S/N interfaces, and transverse spin currents flowing perpendicular to the junction interfaces. Some of these findings can be understood in the light of a non-Abelian electrostatics.

published version

References in corpus (12)

• Non-Abelian Anyons and Topological Quantum Computation
• The Magnus expansion and some of its applications
• Zero-bias anomaly in a nanowire quantum dot coupled to superconductors
• Magnetic moment manipulation by a Josephson current
• Inverse proximity effect in superconductor-ferromagnet bilayer structures
• Spin Supercurrent, Magnetization Dynamics, and Phi-State in Spin-Textured Josephson Junctions
• Spontaneous Edge Accumulation of Spin Currents in Finite-Size Two-Dimensional Diffusive Spin-Orbit Coupled SFS Heterostructures
• Oscillations of Induced Magnetization in Superconductor-Ferromagnet Heterostructures
• Long-Range Spin-Triplet Correlations and Edge Spin Currents in Diffusive Spin-Orbit Coupled SNS Hybrids with a Single Spin-Active Interface
• Evidence for spin-triplet superconducting correlations in metal-oxide heterostructures with non-collinear magnetization
• Nonsinusoidal current-phase relation in strongly ferromagnetic and moderately disordered SFS junctions
• Spin-Hall effects in a Josephson contact

Cited by in corpus (16)

• Anomalous current in diffusive ferromagnetic Josephson junctions
• Spontaneous supercurrent and $\varphi$0 phase shift parallel to magnetized topological insulator interfaces
• Generation of a superconducting vortex via Néel skyrmions
• Majorana bound states in hybrid 2D Josephson junctions with ferromagnetic insulators
• Odd triplet superconductivity induced by the moving condensate
• Thermally induced spin-transfer torques in superconductor/ferromagnet bilayers
• Spectral Properties and Quantum Phase Transitions in Superconducting Junctions with a Ferromagnetic Link
• Supercurrent Vortex Pinball via a Triplet Cooper Pair Inverse Edelstein Effect
• A Unified Description of Spin Transport, Weak Antilocalization and Triplet Superconductivity in Systems with Spin-Orbit Coupling
• Signatures of enhanced spin-triplet superconductivity induced by interfacial properties
• Reconstruction of the DOS at the end of a S/F bilayer
• Gap inversion in one-dimensional Andreev crystals
• Spectral properties of Andreev crystals
• Subgap states and quantum phase transitions in one-dimensional superconductor-ferromagnetic insulator heterostructures
• Signatures of Topological Transitions in the Spin Susceptibility of Josephson Junctions
• Gradient expansion of the non-Abelian gauge-covariant Moyal star-product