All-metallic Nb junctions with Fe/Pt or Cu/Pt weak links exhibit magneto-chiral anisotropic Josephson diode effect matching Rashba SOC symmetry, while plain Cu controls show axis-symmetric behavior.
Das Sarma, In search of Majorana, Nature Physics19, 165 (2023)
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Magneto-Chiral Anisotropy in Josephson Diode Effect of All-Metallic Lateral Junctions with Interfacial Rashba Spin-Orbit Coupling
All-metallic Nb junctions with Fe/Pt or Cu/Pt weak links exhibit magneto-chiral anisotropic Josephson diode effect matching Rashba SOC symmetry, while plain Cu controls show axis-symmetric behavior.