Fig. 3: Experimental results of temperature-dependent quantum-oscillation measurements.
From: Temperature dependence of quantum oscillations from non-parabolic dispersions
a Band-structure illustration of three different types of materials, including Cd3As2 and Bi2O2Se where only one Fermi pocket and its symmetric copies sit at the Fermi level, as well as LaRhIn5 where the small, candidate Dirac Fermi pocket coexists with large trivial pockets. b Temperature-dependent SdH oscillations of small Fermi pockets for Cd3As2, LaRhIn5 and Bi2O2Se respectively. ρosc = Δρ/ρBG, with Δρ the oscillatory part of the magnetoresistivity, and ρBG a polynomial fit to the smooth background. The dashed black line represents the Lifshitz–Kosevich fit to the quantum oscillation measured at lowest temperature for each material. The magnetic field range is chosen to include as many low-noise quantum oscillations as possible, to improve the accuracy of frequency fitting. Exact device geometry and field/current orientations are described in the supplementary Material.
