Fig. 5: Magnetotransport measurements for A5MnSb2.
From: High-entropy engineering of the crystal and electronic structures in a Dirac material
a In-plane electrical resistivity ρxx and Hall resistivity ρxy of A5MnSb2 as a function of magnetic field B at various temperatures (1.7, 5, 10, 15, 20, 30, and 50 K). b The second derivative of ρxx as a function of 1/B. The inset shows the temperature evolution of the FFT spectra of \(\frac{{{{{{{{{\rm{d}}}}}}}}}^{2}{\rho }_{xx}}{{{{{{{{\rm{d}}}}}}}}{B}^{2}}\). c Landau fan diagram obtained from \(\frac{{{{{{{{{\rm{d}}}}}}}}}^{2}{\rho }_{xx}}{{{{{{{{\rm{d}}}}}}}}{B}^{2}}\) at 50 K, where the integers are assigned to the maxima of the second-derivative curve. The error of n0 is obtained from the least square fit to the diagram, representing the uncertainties of the fitted intercept. d Angular dependence of the SdH frequency (Fα) extracted from the ρxx data at 1.7 K. The dashed curve expresses \({F}_{\alpha }({0}^{\circ })/\cos \theta\).
