Fig. 3: Temperature dependence of the charge order amplitude.
From: Coincident onset of charge order and pseudogap in a homogeneous high-temperature superconductor
a Quasielastic intensity around (0, −0.32) at selected temperatures (see Supplementary Note 3 for the data at other temperatures). The solid curves are results of least-squares fits to Lorentzian profiles with a linear background. b Temperature dependence of the quasielastic peak intensity based on the Lorentzian fits. The error bars represent the standard deviation of the fitting parameter. The red curve for Tc ≤ T ≤ 200 K is the result of a power-law fit with exponent β = 0.24 ± 0.07. For comparison, the data of Y123 with doping level p ~ 0.12 are displayed as a gray curve, reproduced from ref. 45. Inset: Temperature dependence of the quasielastic peak intensity based on the Lorentzian fits. Details are described in Supplementary Note 5. c Anomalies in different observables associated with pseudogap formation. Green data points and left scale: Difference in O2 and O3 spin susceptibilities obtained from Knight shifts, 17K2,c − 17K3,c, in NMR measurements on Y124, reproduced from ref. 23. Blue data points and right scale: Amplitude of the pseudogap measured by electronic Raman scattering, reproduced from ref. 35.
