Fig. 6: Cs(V0.93Nb0.07)3Sb5 pressure phase diagram and comparison of time-reversal symmetry (TRS) breaking in CsV3Sb5 derived compounds.
a AC susceptibility measurements as a function of applied hydrostatic pressure (0–2.2 GPa) have been normalised between −1 and 0 as described by the colour bar. The phase diagram is divided into three clear regions. Open circles show the inverse penetration depth squared, λ−2 (right axis), determined from the gap structure analysis of the muon-spin rotation data. b Comparison of TRS breaking across TC for pure and doped CsV3Sb5 compounds. Single-crystal and polycrystalline samples are shown by closed and open markers, respectively. The x-axis has been scaled by a factor of TC for each compound at that pressure. The error bars represent the standard deviation of the fit parameters.
