Fig. 2
From: The evolution of skyrmions in Ir/Fe/Co/Pt multilayers and their topological Hall signature
Temperature dependence of nsk, Δρyx, and R0. The sign of nsk is chosen to match Δρyx. a Δρyx as a function of nsk for different temperatures at μ0H = −0.3T. Labels show the measurement temperature. Error-bars for Δρyx represent a conservative estimate of the systematic error. Errors for nsk are smaller than the symbols. The line is a linear fit (slope 0.6 ± 0.1 nΩ · cm/μm−2, intercept 2.2 ± 0.8 nΩ · cm). b Left axis: magnitude of the THE peaks (H < 0—squares, H > 0—circles). Right axis: the fit parameter R0(T) from Eq. (3) (triangles). c–g MFM scans showing isolated skyrmions for nsk(T) in a. [For c–g scan-height h = 75, 40, 40, 100, 40 nm, (c) is Fig. 1b, scale bars are 1 μm]
