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Flux-Tunable Josephson Diode Effect in a Hybrid Four-Terminal Josephson Junction
| dc.contributor.author | Coraiola, Marco | |
| dc.contributor.author | Svetogorov, Aleksandr | |
| dc.contributor.author | Haxell, Daniel Z. | |
| dc.contributor.author | Sabonis, Deividas | |
| dc.contributor.author | Hinderling, M. | |
| dc.contributor.author | ten Kate, Sofieke C. | |
| dc.contributor.author | Cheah, Erik | |
| dc.contributor.author | Krizek, Filip | |
| dc.contributor.author | Schott, Rüdiger | |
| dc.contributor.author | Wegscheider, Werner | |
| dc.contributor.author | Cuevas, Juan Carlos | |
| dc.contributor.author | Belzig, Wolfgang | |
| dc.contributor.author | Nichele, Fabrizio | |
| dc.date.accessioned | 2024-01-19T09:53:02Z | |
| dc.date.available | 2024-01-19T09:53:02Z | |
| dc.date.issued | 2023-12-07 | |
| dc.description.abstract | We investigate the direction-dependent switching current in a flux-tunable four-terminal Josephson junction defined in an InAs/Al two-dimensional heterostructure. The device exhibits the Josephson diode effect, with switching currents that depend on the sign of the bias current. The superconducting diode efficiency, reaching a maximum of |η|≈34%, is widely tunable - both in amplitude and sign - as a function of magnetic fluxes and gate voltages. Our observations are supported by a circuit model of three parallel Josephson junctions with non-sinusoidal current-phase relation. With respect to conventional Josephson interferometers, phase-tunable multiterminal Josephson junctions enable large diode efficiencies in structurally symmetric devices, where local magnetic fluxes break both time-reversal and spatial-inversion symmetries. Our work establishes a pathway to develop Josephson diodes with wide-range tunability and that do not rely on exotic materials or externally applied magnetic fields. | |
| dc.description.version | submitted | |
| dc.identifier.arxiv | 2312.04415 | |
| dc.identifier.uri | https://kops.uni-konstanz.de/handle/123456789/69133 | |
| dc.language.iso | eng | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Superconductivity | |
| dc.subject.ddc | 530 | |
| dc.title | Flux-Tunable Josephson Diode Effect in a Hybrid Four-Terminal Josephson Junction | eng |
| dc.type | PREPRINT | |
| dspace.entity.type | Publication | |
| kops.citation.bibtex | @unpublished{Coraiola2023-12-07FluxT-69133,
year={2023},
title={Flux-Tunable Josephson Diode Effect in a Hybrid Four-Terminal Josephson Junction},
author={Coraiola, Marco and Svetogorov, Aleksandr and Haxell, Daniel Z. and Sabonis, Deividas and Hinderling, M. and ten Kate, Sofieke C. and Cheah, Erik and Krizek, Filip and Schott, Rüdiger and Wegscheider, Werner and Cuevas, Juan Carlos and Belzig, Wolfgang and Nichele, Fabrizio}
} | |
| kops.citation.iso690 | CORAIOLA, Marco, Aleksandr SVETOGOROV, Daniel Z. HAXELL, Deividas SABONIS, M. HINDERLING, Sofieke C. TEN KATE, Erik CHEAH, Filip KRIZEK, Rüdiger SCHOTT, Werner WEGSCHEIDER, Juan Carlos CUEVAS, Wolfgang BELZIG, Fabrizio NICHELE, 2023. Flux-Tunable Josephson Diode Effect in a Hybrid Four-Terminal Josephson Junction | deu |
| kops.citation.iso690 | CORAIOLA, Marco, Aleksandr SVETOGOROV, Daniel Z. HAXELL, Deividas SABONIS, M. HINDERLING, Sofieke C. TEN KATE, Erik CHEAH, Filip KRIZEK, Rüdiger SCHOTT, Werner WEGSCHEIDER, Juan Carlos CUEVAS, Wolfgang BELZIG, Fabrizio NICHELE, 2023. Flux-Tunable Josephson Diode Effect in a Hybrid Four-Terminal Josephson Junction | eng |
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