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Field-cooled magnetization data for FeMnP0.5Si0.5; left graph: magnetization vs. temperature measured in 1 T field. Right graph: magnetization vs. magnetic field at 295 K.
(Color online) Mössbauer spectra for FeMnP0.5Si0.5 measured at 295 and 440 K. Inset: magnetic hyperfine field distribution at 295 K.
(Color online) Magnetic hyperfine fields B hf for Fe at the tetrahedral Me(1) site for different Fe2− x Mn x P1− y Si y compounds. All compounds show hexagonal crystal structure except along the green arrow lines around FeMnP (green filled data markers) which have the closely related orthorhombic Co2P structure. Data taken from this study and Refs. 4, 5, 15, and 16.
Theoretical results for FeMnP0.5Si0.5. Total energy per site (upper panel) and site-projected magnetic moments (lower panel) of the Mn-pyramidal- (circles) and Fe-pyramidal (squares) Ordered phases as a function of the lattice parameter a and for fixed c/a = 0.5296. The dashed line indicates the experimental lattice parameter.
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