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(a) XRD pattern for around room temperature. Left inset: enlargement of XRD pattern around the (220) peak for . Right inset: lattice parameters of at various temperatures obtained from the Rietveld refinements. (b) Temperature dependent magnetization curve under FC process at 100 Oe from 5 to 850 K. Top inset: the refined lattice parameter and the Curie temperature for . Bottom inset: isotherm magnetization curves at 5 K for .
(a) Temperature dependent resistivity of at zero field from 5 K to 850 K. Left inset: temperature dependence of resistivity from 5 K to 350 K at 0 Oe and 50 kOe, respectively; right inset: nonlinear fitting of below 30 K. (b) Specific heat for at zero field. Inset: is plotted as a function of . The solid line indicates the fitting to Eq. (1).
(a) Temperature dependence of Seebeck coefficient at zero field. (b) Thermal conductivity as a function of temperature at zero field.
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