Fig. 3: Experimental observation of the anomalous in-plane Hall effect in Fe3Sn at room temperature.
From: Room temperature observation of the anomalous in-plane Hall effect in a Weyl ferromagnet
a Shown is the in-plane Hall resistivity ρIPHE as a function of the angle ϕB recorded on device D1 at different, indicated values of the angle ϕE at a temperature T = 300 K and an in-plane magnetic field B∥ = 20 mT. Shown are the data (symbols) and fit to data (solid lines). The inset shows the vertical offset ρ0 and corresponding error bars obtained from a fit to the data (see main text). b Shown is the full angle dependence of ρIPHE within the (ϕB, ϕE)-plane recorded on device D1 at a temperature T = 300 K and an in-plane magnetic field B∥ = 20 mT. c Shown is the full angle dependence of the symmetric contribution ρsym to the transverse resistivity within the (ϕB − ϕE, ϕE)-plane recorded on device D1 at a temperature T = 300 K and an in-plane magnetic field B∥ = 20 mT. d Shown is the symmetric transverse resistivity \({\rho }_{{{\rm{STR}}}}\) recorded as a function of the angle ϕE on device D1 at ϕB = π/2, T = 300 K, and B∥ = 20 mT. e Shown is the resistivity ρPHE of the planar Hall effect (PHE) plotted as a function of ϕB − ϕE on device D1 at ϕE = 0 and ϕE = π at T = 300 K, and B∥ = 20 mT. Shown are the data (symbols) and fit to data (solid lines) with fitted amplitudes ρPHE(ϕE = 0) = (33.6 ± 1.7) nΩ cm and ρPHE(ϕE = π) = (34.6 ± 0.9) nΩ cm. The two-dimensional resistivity maps in b and c result from interpolating ϕB-dependent resistivity curves recorded at 12 different values of ϕE. The hatched areas in b and c indicate missing data points (also seen in d and e), which could not be reached owing to the travel limit of the rotator probe (see “Methods” section).
