Fig. 3: The thickness dependence of quantum oscillations in SRO films.
From: The thickness dependence of quantum oscillations in ferromagnetic Weyl metal SrRuO3
The upper panel of a shows the field dependent σ with fields up to 35 T for three SRO films with different t values, and the corresponding dσ/d(μ0H) versus μ0H were plotted in the lower panel, where pronounced quantum oscillations were observed for μ0H ≥ 3.5 T. The upper panel and lower panel of b show the FFT spectra in the low-frequency region and high-frequency region, respectively. The quantum oscillation for Fs1 (about 30 T) dominates in the low field region, and it seems to vanish for μ0H ≥ 15 T. Other frequencies of F1–F5 appears when μ0H ≥ 12 T. c A summary of the thickness dependence of extracted mean free path and FFT amplitudes are shown in the middle-panel and lower-panel, respectively. The uncertainty in the quantum means free path came from the standard deviation in the fitting to the damping term. The nonmonotonic variation of the FFT amplitude for Fs1 with t is in big contrast to the nearly t-linear dependence for F3 and F4. The corresponding RRR and ρ(2.5 K) as a function of t were plotted in the upper panel of (c).
