Extended Data Fig. 4: Nonreciprocity and nonlinearity. | Nature Materials

Extended Data Fig. 4: Nonreciprocity and nonlinearity.

From: Angle-resolved transport non-reciprocity and spontaneous symmetry breaking in twisted trilayer graphene

Extended Data Fig. 4

(a) Current-voltage characteristic measured at ν = − 0.3 with DC current flowing along azimuth angle of ϕ = 0∘. The black dashed line is a linear fit to the portion of the IV curve near zero current bias. (b) The nonreciprocal component of the IV curve, which is extracted by subtracting the ohmic component of the transport response, η/2 = V∥ − IDCR0. R0 denotes the slope of the IV curve at IDC = 0 The solid line is a quadratic fit to the current dependence of η/2.

Source data

Back to article page