Spontaneous spin accumulation in singlet-triplet Josephson junctions

Abstract

We study the Andreev bound states in a Josephson junction between a singlet and a triplet superconductors. Because of the mismatch in the spin symmetries of pairing, the energies of the spin up and down quasiparticles are generally different. This results in imbalance of spin populations and net spin accumulation at the junction in equilibrium. This effect can be detected using probes of local magnetic field, such as the scanning SQUID, Hall, and Kerr probes. It may help to identify potential triplet pairing in $(\mathrm{TMTSF}{)}_2\mathrm{X}$, $\mathrm{S}{\mathrm{r}}_2\mathrm{Ru}{\mathrm{O}}_4$, and oxypnictides.

Published version

References in corpus (16)

• Unconventional sign-reversing superconductivity in LaFeAsO_(1-x)F_x
• Unconventional pairing originating from disconnected Fermi surfaces in superconducting LaFeAsO${}_{1-x}$F${}_x$}
• High Resolution Polar Kerr Effect Measurements of Sr2RuO4: Evidence for Broken Time Reversal Symmetry in the Superconducting State
• Very High Field Two-Band Superconductivity in LaFeAsO_0.89F_0.11
• Spatial imaging of the spin Hall effect and current-induced polarization in two-dimensional electron gases
• Fractional ac Josephson effect in p- and d-wave superconductors
• Midgap edge states and pairing symmetry of quasi-one-dimensional organic superconductors
• Doping-dependent Phase Diagram of LaO{\it M}As ({\it M}=V--Cu) and Electron-type Superconductivity near Ferromagnetic Instability
• Upper limit on spontaneous supercurrents in Sr${}_2$RuO${}_4$
• Superconducting properties of Fe-based layered superconductor LaO${}_{0.9}$F${}_{0.1-\delta }$FeAs
• Point-Contact Spectroscopy of Iron-Based Layered Superconductor LaO${}_{0.9}$F${}_{0.1-\delta }$FeAs
• Josephson current in s-wave superconductor / Sr_2RuO_4 junctions
• Conductance Spectroscopy of Spin-triplet Superconductors
• Josephson interferometer in a ring topology as a symmetry prove of Sr_2RuO_4
• Edge states and determination of pairing symmetry in superconducting Sr2RuO4
• How to detect edge electron states in (TMTSF)2X and Sr2RuO4 experimentally

Cited by in corpus (19)

• Remotely induced magnetism in a normal metal using a superconducting spin-valve
• Orientation-dependent Josephson effect in spin-singlet superconductor/altermagnet/spin-triplet superconductor junctions
• Time-reversal anomaly and Josephson effect in time-reversal invariant topological superconductors
• Spin current and spin accumulation near a Josephson junction between a singlet and triplet superconductor
• Josephson junctions of multiple superconducting wires
• Creation of spin-triplet Cooper pairs in the absence of magnetic ordering
• Charge and spin supercurrents in triplet superconductor--ferromagnet--singlet superconductor Josephson junctions
• Nodal Andreev Spectra in Multi-Majorana Three-Terminal Josephson Junctions
• Magnetic Intragap States and Mixed Parity Pairing at the Edge of Spin-Triplet Superconductors
• Vortex Structures in Model p-Wave Superconducting Sr2RuO4 -- Single 2-Dimensional Band v.s. Quasi-1-Dimensional Band
• Supercurrent as a Probe for Topological Superconductivity in Magnetic Adatom Chains
• Inverse Proximity Effects at Spin-Triplet Superconductor-Ferromagnet Interface
• Control of magnetism in singlet-triplet superconducting heterostructures
• Interface currents and magnetization in singlet-triplet superconducting heterostructures: Role of chiral and helical domains
• Superconductivity-driven magnetization modulation in YBa2Cu3O7-δ /SrTiO3/La0.67Sr0.33MnO3 heterostructures
• Josephson effect in spin-singlet superconductor/ferromagnetic insulator/spin-triplet superconductor junctions with helical $p$-wave states
• Magnetic exchange interaction in spin-valve with chiral spin-triplet superconductor
• Magnetic resonance in a singlet-triplet Josephson junction
• Quantum kinetic equations and anomalous non-equilibrium Cooper pair spin accumulation in Rashba wires with Zeeman splitting