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A-site ion-size effect on the transport and magnetic properties of Ce doping Pr0.3Ce0.2CaxSr0.5−xMnO3 (0≤x≤0.25)
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View: Figures


Image of FIG. 1.
FIG. 1.

The XRD patterns of (0 x 0.25). Inset: (a) Lattice parameters a, b, c/, and unit cell volume vs x; (b) The XRD pattern of .

Image of FIG. 2.
FIG. 2.

(a) The Raman spectra of as x  0.125. (b) The far infrared (FIR) absorption spectra of as x  0.125.

Image of FIG. 3.
FIG. 3.

The temperature-dependent resistivities of () under 0 T and 5 T. TC , T max , and T min are marked with arrows, black bars, and gray circles, respectively. Inset: (a) The temperature-dependent resistivity of under 0 T; (b) -MR of (x 0.125).

Image of FIG. 4.
FIG. 4.

Temperature-dependent magnetizations of () under H = 0.01 T.

Image of FIG. 5.
FIG. 5.

Temperature-dependent intensities of the ESR spectra of when x = 0, 0.05, and 0.075.

Image of FIG. 6.
FIG. 6.

The x or nominal dependent TC and T max of (0 x 0.125). The dash line is guide to eyes. The nominal , TC , and T max of are shown with a solid straight line, a hollow square and a hollow circle, respectively. Inset: The x dependent T ( = TC -T max ). The solid curve is guide to eyes; the nominal and T of are shown with a solid vertical line and a hollow square.

Image of FIG. 7.
FIG. 7.

The temperature dependent resistivities of under 0 T and 5 T, respectively. Inset: The temperature dependent magnetization measured in a field of 0.01 T for .

Image of FIG. 8.
FIG. 8.

The field (H) dependent magnetizations (M) at 100 K for with x = 0, 0.05, and 0.10, respectively. Inset: hysteresis loop at 100 K for .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A-site ion-size effect on the transport and magnetic properties of Ce doping Pr0.3Ce0.2CaxSr0.5−xMnO3 (0≤x≤0.25)