Fig. 5: Dependency of electrical conductivity on the warping of the Fermi surface cylinders.

a Diagonal components of the electrical conductivity tensor determined from the Fermi surface fitting (see Supplementary Information for calculation details). σ_xx,yy,zz respectively refer to conductivity in the \(\overrightarrow{a}\), \(\overrightarrow{b}\), \(\overrightarrow{c}\) directions. 100% warping corresponds to our Fermi surface model of UTe₂, which we find best fits the dHvA data (Fig. 4). b The same conductivity components as panel a plotted here on a logarithmic scale. For 0% warping (no undulation) we would expect σ_zz to be orders of magnitude lower than σ_xx and σ_yy. However, for our Fermi surface model (at 100% warping) each of σ_xx, σ_yy, and σ_zz are within an order of magnitude. c, Fermi surface simulations for warping factors between 0 and 200%.