Fig. 3: μSR data.
From: Pressure tuning of competing interactions on a honeycomb lattice
a Muon polarization at a low pressure showing oscillations immediately below TN. b At high pressure, oscillations do not appear until TN/2. c Comparing the low-T polarization curves at low-pressure (0 and 0.6 GPa) and high-pressure (2.3 GPa). d Comparing the Fourier transforms of polarization curves. e Visualizing the muon stopping sites (black circles near each oxygen site) in the lattice structure. f Phase diagram of the magnetic (TN) and structural (TS) transitions shown by circles and stars, respectively. The red and blue shades correspond to the disappearance of the magnetic order and the appearance of the structural dimerization.
