Figure 4
Powder neutron diffraction patterns at 3 K collected with the wavevector of 2.4395 Å together with the Rietveld analysis. Observed, calculated, and the difference between both intensities are shown by black dots, red, and blue curves, respectively. Reflection positions from the main phase (nuclear), the main phase (magnetic), and the secondary phase (NaCl) are indicated by black, red, and green vertical lines, respectively. The weight fraction of the secondary phase is estimated as 1.46(4) wt% from the refinement.
