Universal spin superconducting diode effect from spin-orbit coupling

Abstract

We propose a universal spin superconducting diode effect (SDE) induced by spin-orbit coupling (SOC), where the critical spin supercurrents in opposite directions are unequal. By analysis from both the Ginzburg-Landau theory and energy band analysis, we show that the spin-$\uparrow \uparrow$ and spin-$\downarrow \downarrow$ Cooper pairs possess opposite phase gradients and opposite momenta from the SOC, which leads to the spin SDE. Two superconductors with SOC, a $p$-wave superconductor as a toy model and a practical superconducting nanowire, are numerically studied and they both exhibit spin SDE. In addition, our theory also provides a unified picture for both spin and charge SDEs. Besides, we propose spin-polarized detection and nonlocal spin transport, as mature experimental technologies, to confirm the spin SDE in superconducting nanowires.

6 pages, 4 figures (+ supplementary materials 4 pages, 1 figure)

References in corpus (18)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Direct electronic measurement of the spin Hall effect
• A spin triplet supercurrent through the half-metallic ferromagnet CrO2
• Resonant Spin Hall Conductance in Two-Dimensional Electron Systems with Rashba Interaction in a Perpendicular Magnetic Field
• Spin-dependent Cooper Pair Phase and Pure Spin Supercurrents in Strongly Polarized Ferromagnets
• Persistent spin current in nano-devices and definition of the spin current
• Spin Current Generation and Detection in the Presence of AC Gate
• Novel Josephson Effect in Triplet Superconductor - Ferromagnet - Triplet Superconductor Junctions
• Josephson diode based on conventional superconductors and a chiral quantum dot
• Field-free superconducting diode in a magnetically nanostructured superconductor
• Tunable planar Josephson junctions driven by time-dependent spin-orbit coupling
• Charge and spin transport through normal lead coupled to $s$-wave superconductor and a Majorana zero mode
• Spin-triplet superconductor$-$quantum anomalous Hall insulator$-$spin-triplet superconductor Josephson junctions: $0$-$\pi$ transition, ${\varphi }_0$ phase and switch effects
• Spin phase regulated spin Josephson supercurrent in topological superconductor
• Spin Transport in Normal Metal-Ising Superconductor Junction
• Ginzburg-Landau-type theory of non-polarized spin superconductivity

Cited by in corpus (19)

• Spin Splitting Nernst Effect in Altermagnet
• Theory of universal diode effect in three-terminal Josephson junctions
• Field-free Josephson diode effect in interacting chiral quantum dot junctions
• Supercurrent Diode Effect in Josephson Interferometers with Multiband Superconductors
• Design of a Josephson diode based on double magnetic impurities
• Theory of quantum-geometric charge and spin Josephson diode effects in strongly spin-polarized hybrid structures with noncoplanar spin textures
• Non-Hermitian superconducting diode effect
• Bending-strain effects in conventional superconductors and superconducting junctions
• Josephson diodes induced by the loop current states
• Controllable Josephson diode effect, $0$-$\pi$ transition and switch effect in the superconductor/two-dimensional Weyl nodal line semimetal/superconductor junctions
• Geometric Asymmetry-Enhanced Nonreciprocal Supercurrent Transport Revealed by Second-Harmonic Response
• Majorana modes in helical altermagnet without net magnetism and spin-orbit coupling
• Enhanced Superconducting Diode Effect in the Asymmetric Hatsugai-Kohmoto Model
• Superconducting Diode Effect in Gradiently Strained Nb0.5Ti0.5N Films
• Giant and robust Josephson diode effect in multiband topological nanowires
• Algebraic Criterion and Graph-Theoretic Construction of Intrinsic Superconducting Diode Effects
• Helimagnetic Josephson diode effect
• Spin transport in a normal meta-altermagnetic superconducting nanowire junction
• Current-induced re-entrant superconductivity and extreme nonreciprocal superconducting diode effect in valley-polarized systems