Extended Data Fig. 2: Alternative fits.
From: Signatures of two gaps in the spin susceptibility of a cuprate superconductor
a–f, Kspin for p = 0.064 (a), p = 0.072 (b), p = 0.090 (c), p = 0.109 (d), p = 0.125 (e) and p = 0.135 (f) (same data as in Fig. 2). The solid lines are fits with the two-gap function Kspin = Kres + KL (1-tanh2(ΔL/2kBT)) + KH (1-tanh2(ΔH/2kBT)). Fit results are shown in Extended Data Fig. 3. Error bars represent the added uncertainties in the line positions, in the field reference and in the 2nd-order quadrupole shift correction, all calculated from one standard deviation in the Gaussian peak fits of the relevant NMR lines.
