Fig. 3: Transport results of FeSe/ETO.
a Temperature dependence of the resistance for three samples with 10-UC FeTe capping layers. The superconducting onset temperatures are marked. b R–T curves of sample S1 in various fields with H ‖ c. The inset shows the upper critical field Hc2(T) (blue dots) and the fitting with the Ginzburg–Landau model for multigap superconductors (red line). c Arrhenius plot for the resistance in various fields for S1. The corresponding solid lines are fitting results from the Arrhenius relation. d Field dependence of U0 (blue dots) derived from the fitting in panel c, plotted in log–log scale. The red lines are power-law fittings for the data below and above 3 T, respectively, possessing different exponents. e Hall resistance Rxy(H) of S1 at various temperatures. f Temperature dependence of the Hall coefficient obtained as [Rxy(6 T) − Rxy(−6 T)]/12 T, showing a sign change at 94 K.
