Controlling charge and spin transport in an Ising-superconductor Josephson junction

Gaomin Tang; Raffael L. Klees; Christoph Bruder; Wolfgang Belzig

doi:10.1103/PhysRevB.104.L241413

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Controlling charge and spin transport in an Ising-superconductor Josephson junction

Gaomin Tang, Raffael L. Klees, Christoph Bruder, Wolfgang Belzig

DOI 10.1103/PhysRevB.104.L241413 · Physical Review B

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Abstract

An in-plane magnetic field applied to an Ising superconductor converts spin-singlet Cooper pairs to spin-triplet ones. In this work, we study a Josephson junction formed by two Ising superconductors that are proximitized by ferromagnetic (FM) layers. This leads to highly tunable spin-triplet pairing correlations which allow to modulate the charge and spin supercurrents through the in-plane magnetic exchange fields. For a junction with a nonmagnetic barrier, the charge current is switchable by changing the relative alignment of the in-plane exchange fields, and a π state can be realized. Furthermore, the charge and spin current-phase relations display a ϕ0-junction behavior for a strongly spin-polarized FM barrier.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown