The compositional dependence of the lattice parameters, the unit-cell volume, the ratio, obtained from 295 K x-ray diffraction studies, and the Curie and compensation temperatures for the compounds.
The powder neutron diffraction patterns of and obtained at 2 K with a neutron wavelength of 2.52 Å (a) and at 290 K with a neutron wavelength of 1.287 Å (b). The red dots represent the experimental points; the black solid line represents the fit. From top to bottom, the green vertical bars represent the nuclear and magnetic diffraction peaks of the main phase and the diffraction peaks of the impurity. The residuals are plotted in blue. The arrow indicates the Bragg peak corresponding to the contribution from the vanadium tail of the cryostat.
The Mössbauer spectra of (a) and (b) obtained at the indicated temperatures. The red line and the two blue lines represent the and components to the total fit.
The temperature dependence of the , red symbols, and , blue symbols, and isomer shifts in , closed symbols, and , open symbols. The red solid line is a fit with the Debye model for the isomer shifts.
The temperature dependence of the , red squares, and , blue circles, and hyperfine fields in , closed symbols, and , open symbols.
The 295 K unit-cell parameters, 4.2 K spontaneous magnetizations, and the Curie and compensation temperatures for .
The 2 K neutron diffraction refinement results for .
The Mössbauer spectral parameters for the compounds. (The parameters are defined in the text and given with their statistical error limits if they have been refined.)
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