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Relaxor behavior of ferroelectric Ca0.22Sr0.12Ba0.66Nb2O6
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10.1063/1.4775686
/content/aip/journal/apl/102/2/10.1063/1.4775686
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/2/10.1063/1.4775686

Figures

Image of FIG. 1.
FIG. 1.

Part of the resonance spectra obtained on CSBN-22 single crystal using RUS. The ferroelectric phase-transition (4 mm 4/mmm) temperature T C can be easily seen at ∼ 496 K (223 °C).

Image of FIG. 2.
FIG. 2.

Temperature-induced strains along and perpendicular to a 3, showing clearly the Burns temperature (T B), the characteristic temperature (T*), and the Curie temperature (T C).

Image of FIG. 3.
FIG. 3.

(a) Temperature evolutions of the elastic constants cij in GPa in the paraelectric phase, (b) a direct comparison of longitudinal elastic stiffnesses (c 11 and c 33) of CSBN-22 with that of CBN-28 and SBN-61 (see Ref. 23 ).

Image of FIG. 4.
FIG. 4.

Temperature evolutions of the isotropic bulk modulus (B), and Poisson's ratio ( ) above Curie temperature. Deviations from Cauchy relations (gij ) are plotted in inset, showing a considerable difference in the values of Band gij .

Tables

Generic image for table
Table I.

Elastic constants cij (unit GPa) of CSBN-22 at selected temperatures (unit K). Uncertainties of the last decimal are in parenthesis.

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/content/aip/journal/apl/102/2/10.1063/1.4775686
2013-01-15
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Relaxor behavior of ferroelectric Ca0.22Sr0.12Ba0.66Nb2O6
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/2/10.1063/1.4775686
10.1063/1.4775686
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