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Magnetic properties of electron doped manganites: Pressure effects on competitive ferromagnetic and antiferromagnetic interactions
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10.1063/1.2970169
/content/aip/journal/jap/104/4/10.1063/1.2970169
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/4/10.1063/1.2970169

Figures

Image of FIG. 1.
FIG. 1.

Variation of and with in and systems. Inset shows the variation of the unit cell volume with Ba content.

Image of FIG. 2.
FIG. 2.

(a) Temperature dependence of ZFC (open symbols) and FC (solid symbols) magnetization of in magnetic field . (b) Field dependence of magnetization of at .

Image of FIG. 3.
FIG. 3.

(a) Temperature dependence of ac susceptibility of measured during cooling at different frequencies 100, 1000, and and magnetic field of 1 Oe. vs temperature curve. (b) curves for registered at the same frequencies under magnetic field 1 Oe. Inset shows the variation of in the vicinity of the peak.

Image of FIG. 4.
FIG. 4.

(a) Temperature dependence of ac susceptibility of measured during cooling at different frequencies 100, 1000, and and magnetic field of 1 Oe. vs temperature curve. (b) curves for registered during cooling at 1000 and under magnetic field 1 Oe; (c) Temperature dependence of both real part and imaginary part of ac susceptibility of registered during cooling in magnetic field of 1 Oe at 10 000 Hz in dc applied magnetic field of .

Image of FIG. 5.
FIG. 5.

(a) Field dependence of magnetization of at various temperatures. Inset shows low field part of descending branch of the hysteresis loop at the same temperatures. (b) Half-hysteresis loops of at some selected temperatures.

Image of FIG. 6.
FIG. 6.

(a) Temperature dependence of the resistivity of registered at zero magnetic field and at . Inset shows the temperature dependence of MR in magnetic field . (b) Temperature dependence of the resistivity of registered at and at (left axis) and MR in (right axis). (c) Temperature dependence of the resistivity of registered at zero magnetic field and at (left axis) and MR in (right axis).

Image of FIG. 7.
FIG. 7.

(a) Temperature dependence of ZFC (open symbols) and FC (solid symbols) magnetization of at and at in magnetic field . Inset shows pressure dependence of . (b) vs temperature curves for at various pressures. Solid lines are guides to the eye. (c) Field dependence of magnetization of at under ambient pressure and . Inset shows field dependence of magnetization at in the extended scale.

Image of FIG. 8.
FIG. 8.

(a) Temperature dependence of ZFC (open symbols) and FC (solid symbols) magnetization of at various pressures in magnetic field . (b) Temperature dependence of (open symbols) and (solid symbols) magnetization of at and at in magnetic field . (c) Temperature dependence of (open symbols) and (solid symbols) magnetization of at and at kbar in magnetic field . vs temperature curves for at and at .

Image of FIG. 9.
FIG. 9.

Field dependence of magnetization of at and at various temperatures: (a) at 5 K, (b) at 80 K, and (c) at 100 K. Inset in (b) shows field dependence of magnetization at 80 K in the extended scale.

Tables

Generic image for table
Table I.

Results of the Rietveld refinement: variation of lattice parameters (, , and ), volume of the unit cell , bond lengths [apical bond and two in plane bonds (A) and (B)], and of bond angles with Ba content in .

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/content/aip/journal/jap/104/4/10.1063/1.2970169
2008-08-29
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic properties of electron doped Sm0.1Ca0.9−yBayMnO3(y=0.02, 0.06) manganites: Pressure effects on competitive ferromagnetic and antiferromagnetic interactions
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/4/10.1063/1.2970169
10.1063/1.2970169
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