X-ray diffraction patterns of the arc-melted and annealed compounds with La substitution of . Inset figure corresponds to a zoom of the (531) Bragg peak of the -type structure for all studied compounds.
Room temperature Mössbauer spectra of the arc-melted and annealed compounds with La substitution of .
X-ray diffraction patterns (a) and room temperature Mössbauer spectra (b) of the milled and annealed compounds ( and Gd) with La substitution.
curves obtained in the FCW and FCC modes, recorded under 500 mT, for the milled and annealed compound.
curves obtained for temperature range between 150 and 270 K for the arc-melted and annealed compound.
Magnetic entropy change curves obtained under 5 T for the milled and annealed compounds with of La substituted by Gd or Y atoms. The opened circles are related to the parent compound, while the filled squares and triangles are due to the Y- and Gd-substituted compounds, respectively.
Ordering temperature , magnetic entropy change , and the half-height width of the curves for the studied materials.
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