Extended Data Fig. 1: Determination of Tconset, Tc1 and Tc2 from the resonant frequency of the NMR tank circuit.
From: Emergent charge order in pressurized kagome superconductor CsV3Sb5

Tconset is defined as the temperature where the average value deviates from zero. Tc1 and Tc2 are defined by the valley of the second derivation of –Δf/f. Tconset is labelled by a black arrow. Tc1 and Tc2 are labelled by red and blue curves, respectively.