Electrocaloric Effect in Na1/2Bi1/2TiO3-SrTiO3-PbTiO3Solid Solutions

6533b85efe1ef96bd12c05d1

RESEARCH PRODUCT

Electrocaloric Effect in Na1/2Bi1/2TiO3-SrTiO3-PbTiO3Solid Solutions

M. Dunce Juha Hagberg Andris Sternberg Eriks Birks Maija Antonova

subject

Phase transition Materials science Condensed matter physics Electric field Dielectric permittivity Electrocaloric effect Thermodynamics Condensed Matter Physics Electronic Optical and Magnetic Materials Solid solution

description

Electrocaloric effect is studied in a group of triple solid solutions 0.4Na1/2Bi1/2TiO3-(0.6-y)SrTiO3-yPbTiO3. Contribution of electric field-induced phase transition in the total value of temperature change, caused by electric field, is evaluated. The highest value of electrocaloric effect is observed for composition 0.4Na1/2Bi1/2TiO3-0.4SrTiO3-0.2PbTiO3, in which the depolarization temperature, characteristic for relaxor ferroelectrics, merges with the temperature of maximum of dielectric permittivity. Applicability of thermodynamic description is discussed.

year	journal	country	edition	language
2012-01-01	Ferroelectrics

https://doi.org/10.1080/00150193.2012.675264

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