Fig. 2
From: Restoration of quantum critical behavior by disorder in pressure-tuned (Mn,Fe)Si
MuSR time spectra observed in a single crystal specimen of (Mn0.85Fe0.15)Si. a–e Results in zero field at hydrostatic pressures p = 0.0, 11.7, 16.4, 19.3 and 23.0 kbar. f Results with a longitudinal field (LF) of 500 G applied parallel to the initial spin direction of the incident positive muons. The lines represent fits to the relaxation functions given by Eqs. (1)–(4) in the main text. More details can be found in the Supplementary Information. Panel e shows that static magnetic order disappears at p = 23 kbar, and that the effect of the pressure cell on the observed spectra is minimal. Panel f demonstrates that the fast relaxation seen at low temperature is due to static random local fields, which can be decoupled by the application of LF
