Fig. 3: The evidence of superconductivity at the point contact (PC) by pressing the PtIr tip onto the (001) surface of TbMn6Sn6.
From: Emergent superconductivity in topological-kagome-magnet/metal heterostructures
a The temperature dependence of the normalized PC resistance (R/R5K) at zero bias with (green curve, B = 3 T) or without (blue, B = 0 T) applying the magnetic field. Inset: the schematic of the PC configuration, the magnetic field is applied along the out-of-plane direction (B | |c axis). b, c The temperature and magnetic field dependence of the normalized point-contact spectra (PCS). The PCS curves are shifted vertically for clarity. The applied magnetic field is ramping from 0 T to −0.5 T at 1.5 K. d The magnetoresistance measurements of the PC at 1.5 K. The PC resistance in the normal state at 5 K is 10.7 Ω.
