A response tensor is introduced to characterize the superconducting diode effect, taking antisymmetric form under Rashba SOC with C3v/C4v/C6v symmetries and acquiring symmetric parts under nematicity as a potential detector of that order.
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Symmetry analysis and Furusaki-Tsukada calculations show that tuning exchange-field directions, Rashba SOC, and d-wave lobe orientations in Josephson junctions enhances nonreciprocity in the current-phase relation by more than 40%, with asymmetric Andreev bound states driving the diode effect.
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Response tensor for the superconducting (Josephson) diode effect
A response tensor is introduced to characterize the superconducting diode effect, taking antisymmetric form under Rashba SOC with C3v/C4v/C6v symmetries and acquiring symmetric parts under nematicity as a potential detector of that order.
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Anomalous and diode Josephson effect in junctions with inhomogeneous ferromagnetic barrier and interfacial Rashba spin-orbit coupling
Symmetry analysis and Furusaki-Tsukada calculations show that tuning exchange-field directions, Rashba SOC, and d-wave lobe orientations in Josephson junctions enhances nonreciprocity in the current-phase relation by more than 40%, with asymmetric Andreev bound states driving the diode effect.