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(a) XRD refinement calculation result for as-prepared ( factors: , ). The XRD pattern of the substrate has been plotted as a reference. The inset is the SEM image for double-perovskite film. (b) XPS spectra of the peaks and the peaks for film.
(a) Magnetization as a function of temperature ; the solid line in the inset is the Curie–Weiss fitting for the curve from 500 to 750 K. (b) Magnetization as a function of magnetic field at different temperatures; the inset is the hysteresis loop observed at room temperature. The magnetic contribution from the substrate has been subtracted from all the data.
Heat capacity as a function of temperature from 2 to 300 K (symbols show the experimental data, and solid line is the fit). The inset is the excess magnetic heat capacity extracted from the total heat capacity by subtracting a smooth background using Debye–Einstein fitting.
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