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(Color online) XRD patterns (crosses) and the Rietveld refinement profiles (solid line) for the GdCo0.65Al1.35 alloy. The upper and the lower sets of vertical bars correspond to the calculated Bragg peaks of the GdCo0.74Al1.26 and GdAl2 phases, respectively. RP , R wp, RB , and χ2 are the profile residual, weighted profile residual, the Bragg residual, and the goodness of fit, respectively.
The backscattered electron image of the as-cast GdCo0.65Al1.35 alloy. The black dots in the picture correspond to the holes in the sample.
(Color online) Temperature dependencies of magnetization of the as-cast GdCo0.65Al1.35 alloy with a 1 kOe applied field upon heating. The inset shows the inverse susceptibility-temperature data.
(Color online) Magnetization isotherms of GdCo0.65Al1.35 alloy at temperatures between 2 and 150 K (a) and temperature dependencies of magnetic entropy changes (−ΔS M) for the magnetic field changes from 0 to 50 kOe and 0 to 20 kOe (b).
The structure, the density, the proportion, the lattice parameters, and the composition of the GdCo0.74Al1.26 and GdAl2 phases determined by Rietveld refinement for the GdCo0.65Al1.35 alloy.
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