Extended Data Fig. 4: Temperature-induced Kondo breakdown at v = 1 + vc.
From: Topological Kondo insulator in MoTe2/WSe2 moiré bilayers
a, Temperature dependence of \({R}_{\mathrm{xx}}\) at varying \({\nu }_{{\rm{c}}}\) along the arrow direction shown in Fig. 2a (\({B}_{\perp }=0\) T). The arrows mark the Kondo temperature \({T}^{* }\) (see Methods for its determination). The dashed line denotes the expected quantized value for a TI. b, Extracted \({T}^{* }\) (red), critical Zeeman energy \(g{\mu }_{{\rm{B}}}{B}_{\perp {\rm{C}}}/{k}_{{\rm{B}}}\) (black, estimated using g = 10) and coefficient A (blue) as a function of \({\nu }_{{\rm{c}}}\) with \({\nu }_{{\rm{f}}}=1\). Error bars denote the standard deviation from data fitting. c, \({R}_{\mathrm{xx}}\) versus \({T}^{2}\) at varying \({\nu }_{{\rm{c}}}\) in the Kondo lattice region (\({B}_{\perp }=0\) T). The solid lines show the linear fits to the low-temperature part of the data using \({R}_{\mathrm{xx}}={R}_{0}+A{T}^{2}\), from which \(A\) was extracted. d, \({R}_{\mathrm{xx}}\) versus \(T\) at varying \({\nu }_{{\rm{c}}}\) (same as in a), illustrating the determination of \({T}^{* }\). (The results are from device 1.).
