Extended Data Fig. 3: Scaling of normalized nonlinear Hall voltage \({V}_{xy}^{2\omega }/{({V}_{xx}^{\omega })}^{2}\) with square of longitudinal conductivity (\({\sigma }_{xx}^{2}\)) with temperature as parameter.
From: Berry curvature dipole senses topological transition in a moiré superlattice
a, The variation of nonlinear Hall voltage \({V}_{xy}^{2\omega }\) (blue-colored data points corresponding to the left axis) and longitudinal voltage \({V}_{xx}^{\omega }\) (orange-colored data points corresponding to the right axis) as a function of temperature T for ν = 0.125. b, The corresponding variation of normalized nonlinear Hall voltage \({V}_{xy}^{2\omega }/{({V}_{xx}^{\omega })}^{2}\) (black-colored data points corresponding to the left axis) and square of longitudinal conductivity \({\sigma }_{xx}^{2}\) (red-colored data points corresponding to the right axis) as a function of T, extracted for the same filling used in a. c, The variation of \({V}_{xy}^{2\omega }/{({V}_{xx}^{\omega })}^{2}\) with \({\sigma }_{xx}^{2}\) plotted parametrically as a function of T, using the results in b. The temperature value of data points in Kelvin is indicated by the color. The dashed line indicates a linear fit till 7 K.
