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Dielectric relaxation, lattice dynamics and polarization mechanisms in Bi0.5Na0.5TiO3-based lead-free ceramics
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10.1063/1.4812383
/content/aip/journal/jap/114/1/10.1063/1.4812383
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/1/10.1063/1.4812383

Figures

Image of FIG. 1.
FIG. 1.

XRD of the annealed ceramic.

Image of FIG. 2.
FIG. 2.

(a) Real part of permittivity, (b) imaginary part of permittivity, (c) loss factor as a function of temperature at different frequencies in the range 100 Hz-1 MHz.

Image of FIG. 3.
FIG. 3.

(a) ε-log, (b) ε-log, (c) permittivity Cole-Cole plot, (d) electric modulus Cole-Cole plot, in the range T < T; (e) ε-log, (f) ε-log, (g) permittivity Cole-Cole plot, (h) electric modulus Cole-Cole plot, in the range T < T < T; (i) ε-log, (j) ε-log, (k) permittivity Cole-Cole plot, (l) electric modulus M′-M′′ plot, in the range T > T.

Image of FIG. 4.
FIG. 4.

Arrhenius plot of the relaxation frequency.

Image of FIG. 5.
FIG. 5.

Temperature-dependent Raman spectra of BNT-BT-5CT.

Image of FIG. 6.
FIG. 6.

Spectral analysis of BNT-BT-5CT in dependence of temperature. (a) Peak position; (b) intensity; and (c) FWHM. Each point is the average of three experimentally collected data points. The standard deviation is represented on the graphs as error bars.

Image of FIG. 7.
FIG. 7.

Temperature dependence of the two modes at 270 cm and 380 cm.

Image of FIG. 8.
FIG. 8.

Current-Polarization-Electric field loop at different frequencies in the range 25 °C–75 °C.

Image of FIG. 9.
FIG. 9.

Current-polarization-electric field loop at different frequencies in the range 100 °C–175 °C.

Image of FIG. 10.
FIG. 10.

Frequency dependence of P and P in the range 25 °C–175 °C.

Tables

Generic image for table
Table I.

Temperature dependence of the parameter .

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/content/aip/journal/jap/114/1/10.1063/1.4812383
2013-07-02
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dielectric relaxation, lattice dynamics and polarization mechanisms in Bi0.5Na0.5TiO3-based lead-free ceramics
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/1/10.1063/1.4812383
10.1063/1.4812383
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