Diode effect in a skyrmion-coupled high-temperature Josephson junction

Abstract

We show that a planar Josephson junction having $d$-wave superconducting regions, with a skyrmion crystal placed underneath, produces a robust gate-tunable superconducting diode effect. The spatially-varying exchange field of the skyrmion crystal breaks both inversion and time-reversal symmetries, leading to an asymmetric current-phase relation with an anomalous phase shift. Our theoretical calculations, obtained using resistively and capacitively shunted junction model combined with Bogoliubov-de Gennes method, reveal that the diode efficiency is largely tunable by controlling external gate voltage and skyrmion radius. Incorporation of a $d$-wave superconductor such as high-$T_c$ Cuprate enables the diode to function at higher operating temperatures. Our results establish a unique and practically-realizable mechanism for devising tunable field-free superconducting diodes based on magnetic texture-superconductor hybrid platforms.

8 pages, 4 figures

References in corpus (40)

• Realization of the field-free Josephson Diode
• A Josephson junction supercurrent diode
• Supercurrent diode effect and finite momentum superconductivity
• Topological Superconductivity in a Phase-Controlled Josephson Junction
• Zero-field superconducting diode effect in small-twist-angle trilayer graphene
• A phenomenological theory of superconductor diodes
• Topological Superconductivity in a Planar Josephson Junction
• Universal Josephson diode effect
• Ubiquitous Superconducting Diode Effect in Superconductor Thin Films
• Theory of the supercurrent diode effect in Rashba superconductors with arbitrary disorder
• Field-free superconducting diode effect in noncentrosymmetric superconductor/ferromagnet multilayers
• Diode effect in Josephson junctions with a single magnetic atom
• Demonstration of a superconducting diode-with-memory, operational at zero magnetic field with switchable nonreciprocity
• Theory of nonreciprocal Josephson effect
• Theory of diode effect in d-wave superconductor junctions on the surface of topological insulator
• Direct Observation of a Superconducting Vortex Diode
• Synchronization in disordered Josephson junction arrays: Small-world connections and the Kuramoto model
• Tunable Josephson diode effect on the surface of topological insulators
• Superconducting spintronic tunnel diode
• Ballistic superconductivity and tunable $\pi$-junctions in InSb quantum wells
• A survey of classical and quantum interpretations of experiments on Josephson junctions at very low temperatures
• Transport Studies in a Gate-Tunable Three-Terminal Josephson Junction
• Diode effects in current-biased Josephson junctions
• Signatures of a topological phase transition in a planar Josephson junction
• Bursting dynamics in a population of oscillatory and excitable Josephson junction
• Spontaneous time-reversal symmetry breaking in twisted double bilayer graphene
• Link between supercurrent diode and anomalous Josephson effect revealed by gate-controlled interferometry
• Skyrmion Control of Majorana States in Planar Josephson Junctions
• Josephson diode effects in twisted nodal superconductors
• Discrete Breathers in Josephson Ladders
• Josephson effect through magnetic skyrmion
• Josephson transistor from the superconducting diode effect in domain wall and skyrmion magnetic racetracks
• Progress in superconductor-semiconductor topological Josephson junctions
• On the origin of reentrance in 2D Josephson Junction Arrays
• Voltage noise, switching rates, and multiple phase-slips in moderately damped Josephson junctions
• Spontaneous Josephson $\pi$ Junctions with Topological Superconductors
• Challenges in detecting topological superconducting transitions via supercurrent and phase probes in planar Josephson junctions
• Multidimensional Washboard Ratchet Potentials for Frustrated Two-Dimensional Josephson-Junctions Arrays on square lattices
• Multiple Majorana bound states and their resilience against disorder in planar Josephson junctions
• Magnetic field-free braiding and nontrivial fusion of Majorana bound states in high-temperature planar Josephson junctions