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Magnetic and dielectric properties of sol-gel derived nanoparticles of double perovskite Y2NiMnO6
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10.1063/1.4748058
/content/aip/journal/jap/112/4/10.1063/1.4748058
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/4/10.1063/1.4748058

Figures

Image of FIG. 1.
FIG. 1.

DTA pattern obtained from powder containing heat treated (693 K) precursor gel.

Image of FIG. 2.
FIG. 2.

Rietveld refinement profiles of x-ray powder diffraction data for the specimen. The solid line is the calculated profile and a difference curve is plotted at the bottom.

Image of FIG. 3.
FIG. 3.

(a) Transmission electron micrograph for the specimen; (b) high resolution electron micrograph; (c) selected area electron diffraction pattern from (a).

Image of FIG. 4.
FIG. 4.

Variation of magnetization as a function of temperature under ZFC and FC condition of the sample measured in magnetic field 500 Oe. Inset shows Curie-Weiss fit (solid line) curve of the FC data.

Image of FIG. 5.
FIG. 5.

Magnetization versus magnetic field hysteresis loops for the specimens (at different temperatures).

Image of FIG. 6.
FIG. 6.

Mn 2p XPS spectra of the sample.

Image of FIG. 7.
FIG. 7.

Variation of logarithm of resistivity of the specimen as a function of inverse temperature. Solid line fitted with Eq. (1).

Image of FIG. 8.
FIG. 8.

Variation of magnetization as a function of time with different tw for specimen. The solid line is the fitted curve based on stretched exponential function. (Inset) variation of S(t) as a function of time for different values of tw.

Image of FIG. 9.
FIG. 9.

The temperature dependence of the ac susceptibility of the sample at different frequencies.

Image of FIG. 10.
FIG. 10.

(a) Variation of dielectric constant and loss factor (tan δ) of the specimen as a function of temperature at 10 kHz frequency. (b) Polarization–electric field hysteresis loop for the sample at 123 K.

Tables

Generic image for table
Table I.

Lattice parameters and atomic coordinates from Rietveld refinement of x-ray diffraction data obtained for the specimen. Rwp = 7.94% and Rp = 6.21%.

Generic image for table
Table II.

The chemical composition and stoichiometry ratio of specimenY2NiMnO6 as analyzed by EDAX measurements.

Generic image for table
Table III.

Summary of extracted parameters of fitted equations (1) and (2) for the specimen.

Generic image for table
Table IV.

Extracted parameters of fitted equation (4) for different wait time at 65 K.

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/content/aip/journal/jap/112/4/10.1063/1.4748058
2012-08-30
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic and dielectric properties of sol-gel derived nanoparticles of double perovskite Y2NiMnO6
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/4/10.1063/1.4748058
10.1063/1.4748058
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