Fig. 3: Magnetic field dependence of the SDE in device s1.
From: High-temperature field-free superconducting diode effect in high-Tc cuprates
a \({I}_{{{{\rm{c}}}}+}\) and \({{|I}}_{{{{\rm{c}}}}-}|\) (the upper panel) obtained from the 0–P and 0–N branches and the diode efficiency \(\eta\) (the lower panel) as a function of perpendicular magnetic fields at 30 K. b Asymmetric V-I curves containing 0–P (orange) and 0–N (purple) branches at 30 K under perpendicular magnetic field 2 mT. The black dashed line represents zero voltage. c Half-wave rectification at 30 K under perpendicular magnetic field 2 mT. The amplitude of the excitation current is 100 \({{{\rm{\mu }}}}{{{\rm{A}}}}\) and the frequency is 0.017 Hz. The red dashed lines represent the value of zero.
