Intrinsic Superspin Hall Current

Abstract

We discover an intrinsic superspin Hall current: an injected charge supercurrent in a Josephson junction containing heavy normal metals and a ferromagnet generates a transverse spin supercurrent. There is no accompanying dissipation of energy, in contrast to the conventional spin Hall effect. The physical origin of the effect is an antisymmetric spin density induced among transverse modes $k_y$ near the interface of the superconductor arising due to the coexistence of $p$-wave and conventional $s$-wave superconducting correlations with a belonging phase mismatch. Our predictions can be tested in hybrid structures including thin heavy metal layers combined with strong ferromagnets and ordinary $s$-wave superconductors.

arXiv comment8 pages, 6 figures. Included a section on the microscopic origin of the effect in addition to a derivation and physical explanation of how a non-unitary state where singlet and triplet pairing coexist produce a net magnetization

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Cited by in corpus (16)

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• Microscopic study of the Josephson supercurrent diode effect in Josephson junctions based on two-dimensional electron gas
• Boosting spintronics with superconductivity
• Orbital angular momentum of Bloch electrons: equilibrium formulation, magneto-electric phenomena, and the orbital Hall effect
• Magnetization reorientation due to the superconducting transition in heavy-metal heterostructures
• Spin supercurrent in two-dimensional superconductors with Rashba spin-orbit interaction
• Skew Andreev reflection in ferromagnet/superconductor junctions
• Anomalous Josephson Hall effect charge and transverse spin currents in superconductor/ferromagnetic insulator/superconductor junctions
• Magnetization Reversal by Tuning Rashba Spin-Orbit Interaction and Josephson Phase in a Ferromagnetic Josephson Junction
• Controlling the Superconducting Transition by Rotation of an Inversion Symmetry-Breaking Axis
• Direct and inverse superspin Hall effect in two-dimensional systems: Electrical detection of spin supercurrents
• Spin supercurrent in superconductor/ferromagnet van-der-Waals heterostructures
• Planar Josephson Hall effect in topological Josephson junctions
• Dissipationless Vector Drag--Superfluid Spin Hall Effect
• Proximity effect and p-wave superconductivity in s-wave superconductor/helimagnet heterostructures
• Triplet correlations in superconductor/antiferromagnet heterostructures: dependence on type of antiferromagnetic ordering