Extended Data Fig. 6: Extracting TBKT in device 1.
From: Unconventional superconducting quantum criticality in monolayer WTe2
a, Characteristic nonlinear I-V curves on a logarithmic scale at various temperatures. The black dashed line shows a tentative fit to the Vxx ∝ IDC3 power law, which extracts TBKT to be 580 mK for ng = 22.84 × 1012 cm−2. b, The corresponding differential resistance (dVxx/dI) as a function of IDC and T. c, dRxx/dT as a function of ng and T (the same data of Fig. 1b, using two neighboring points for the temperature derivative). The black dots represent TBKT extracted by fitting to the Vxx ∝ IDC3 power law for various ng. d, B-dependence of Rxx as a function of T for ng = 22.84 × 1012 cm−2.
