Anomalous Josephson Effect in S/SO/F/S heterostructures

Abstract

We study the anomalous Josephson effect, as well as the dependence on the direction of the critical Josephson current, in an S/N/S junction, where the normal part is realized by alternating spin-orbit coupled and ferromagnetic layers. We show that to observe these effects it is sufficient to break spin rotation and time reversal symmetry in spatially separated regions of the junction. Moreover, we discuss how to further improve these effects by engineering multilayers structures with more that one couple of alternating layers.

10 pages, 8 figures

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• Josephson diode based on conventional superconductors and a chiral quantum dot
• Fraunhofer response and supercurrent spin switching in black phosphorus with strain and disorder
• Anomalous phase shift in a Josephson junction via an antiferromagnetic interlayer
• Supercurrent in ferromagnetic Josephson junctions with heavy metal interlayers. II. Canted magnetization
• Field-free superconducting diode in a magnetically nanostructured superconductor
• Manipulation of Cooper pair entanglement in hybrid topological Josephson junctions
• Locking of magnetization and Josephson oscillations at ferromagnetic resonance in ${\phi }_0$ junction under external radiation
• Engineered Josephson diode effect in kinked Rashba nanochannels
• Nonreciprocal charge transport and subharmonic structure in voltage-biased Josephson diodes
• Anomalous Josephson effect and rectification in junctions between Floquet topological superconductors
• Anomalous Josephson Hall effect charge and transverse spin currents in superconductor/ferromagnetic insulator/superconductor junctions
• Green's Function Approach to Josephson Dot Dynamics and Application to Quantum Mpemba Effects
• Interplay between singlet and triplet pairings in multi-band two-dimensional oxide superconductors
• Topological superconducting phases and Josephson effect in curved time-reversal-invariant superconductors
• Evidence of $\varphi$0-Josephson junction from skewed diffraction patterns in Sn-InSb nanowires
• On-off switch and sign change for non-local Josephson diode in spin-valve Andreev molecules
• Anomalous supercurrent modulated by interfacial magnetizations in Josephson junctions with ferromagnetic bilayers
• Andreev non-Hermitian Hamiltonian for open Josephson junctions from Green's functions
• Many-body quantum dynamics of spin-orbit coupled Andreev states in a Zeeman field
• Upper critical fields in normal metal-superconductor-normal metal trilayers
• Supercurrent from the imaginary part of the Andreev levels in non-Hermitian Josephson junctions
• Quantum zero point electromagnetic energy difference between the superconducting and the normal phase in a HTc superconducting metal bulk sample