Fig. 5: Hyperfine parameters of Fe0.94O under pressure.
From: Monoclinic distortion and magnetic transitions in FeO under pressure and temperature

a the center shift (Gray symbols are data collected after the heating) (b) the quadrupole splitting, and (c) the hyperfine magnetic field of the magnetic sextets. The error bars represent estimated standard deviations of fittings. The error bars are smaller than the symbol size if not shown.