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Magnetic field induced dielectric relaxation in the strain glass state of Pr0.6Ca0.4MnO3
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10.1063/1.4803146
/content/aip/journal/jap/113/17/10.1063/1.4803146
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4803146
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Temperature variation of ZFC magnetization for different applied magnetic fields, inset shows the temperature variation of ZFC-FC magnetization for 100 Oe. (b) Temperature variation of resistivity for different applied magnetic fields, inset shows the temperature dependent magnetization (ZFC-FC) and resistivity for 4 and 4.3 T, respectively.

Image of FIG. 2.
FIG. 2.

(a) Upper panel shows the M-H plot at 30 K, inset shows magnified view at low magnetic fields and the lower panel shows the magnetic field variation of resistivity and dielectric permittivity at 30 K. (b) Upper panel shows the M-H plot at 50 K, inset shows magnified view at low magnetic fields and the lower panel shows the magnetic field variation of resistivity and dielectric permittivity at 50 K.

Image of FIG. 3.
FIG. 3.

(a) Temperature dependent dielectric permittivity (ε′). (b) Tan δ for different frequencies at H = 0 T. (c) Temperature dependent dielectric permittivity for different applied fields at 100 kHz; inset shows the variation of dε′/dt with respect to temperature. (d) Variation of dε′/dt with respect to temperature for different frequencies at H = 3.2 T.

Image of FIG. 4.
FIG. 4.

Shows the plot between lnτ vs. inverse temperature for different magnetic fields and solid lines shows the fit to Eq. (1) ; left inset shows the magnetic field variation of E and τ, right inset shows the plot between τ vs. temperature for 3.2 T, and solid line indicated the fit to Eq. (2) .

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/content/aip/journal/jap/113/17/10.1063/1.4803146
2013-05-03
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic field induced dielectric relaxation in the strain glass state of Pr0.6Ca0.4MnO3
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4803146
10.1063/1.4803146
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