Magnetochiral Anisotropy in Josephson Diode Effect of All-Metallic Lateral Junctions with Interfacial Rashba Spin-Orbit Coupling

Physical Review Letters 2026 Open access

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Authors: Maximilian Mangold, Lorenz Bauriedl, Johanna Berger, Yu‐Cheng Chang, Thomas Meier, M. Kronseder, Pertti Hakonen, C. H. Back, Christoph Strunk, Dhavala Suri
DOI: 10.1103/n9g9-99wl
Cited by: 0
References: 55

Abstract

We explore the role of interfacial Rashba spin-orbit coupling (SOC) for the Josephson diode effect in all-metal diffusive Josephson junctions. Devices with Fe/Pt and Cu/Pt weak links between Nb leads reveal a Josephson diode effect in an in-plane magnetic field with magnetochiral anisotropy according to the point symmetry of Rashba SOC. The Rashba SOC originates from inversion symmetry breaking at the metal-metal interfaces. A control sample with a plain Cu layer as weak link, in contrast, exhibits an axis-symmetric diode effect. The Fraunhofer patterns display an apparent inverted hysteresis that can be traced back to stray fields resulting from the conventional hysteretic vortex pinning in the Nb contacts.

Fields of Study & Subjects

Topological Materials and Phenomena Magnetic properties of thin films Quantum and electron transport phenomena

Publication details

Journal / source
Physical Review Letters
Publisher
American Physical Society (APS)
Volume
136
Issue
20
Pages
206002–206002
Publication date
24 April 2026
Language
EN