Fig. 2: Observation of large non-reciprocal superconductivity. | Nature Communications

Fig. 2: Observation of large non-reciprocal superconductivity.

From: Large superconducting diode effect in ion-beam patterned Sn-based superconductor nanowire/topological Dirac semimetal planar heterostructures

Fig. 2

a Current dependence of the resistance of a β-Sn/α-Sn nanowire (NW90) with a width W = 500 nm when a magnetic field H is applied parallel (orange) and antiparallel (green) to the current I. b Switching between the superconducting and normal-conducting states by changing the direction of the applied current between ± 68 μA, while a magnetic field H = 0.11 T is applied parallel to current direction. c Absolute values of the diode rectification ratio η (top) and critical current IC (bottom) as functions of the magnetic field strength with H // I. η reaches a maximum value of 35% when H = −0.1 T. All are measured at 2 K.

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