Phase transitions and electrocaloric effect in Ca-Modified Na1/2Bi1/2TiO3-SrTiO3-PbTiO3 solid solutions

Marija Dunce; Eriks Birks; Jani Peräntie; Juha Hagberg; Maija Antonova; Andris Sternberg

doi:10.1109/TUFFC.2014.3044

Phase transitions and electrocaloric effect in Ca-Modified Na1/2Bi1/2TiO3-SrTiO3-PbTiO3 solid solutions

Marija Dunce
, Eriks Birks
, Jani Peräntie
, Juha Hagberg
, Maija Antonova
, Andris Sternberg

Laboratory of Optical Materials, Institute of Solid State Physics

University of Oulu
University of Latvia

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The electrocaloric effect as a function of Ca concentration is studied in 0.4Na_1/2Bi_1/2TiO₃-(0.4-x)SrTiO₃-0.2PbTiO₃-xCaTiO₃. Weak influence of Ca at low concentrations corresponds to the previously established concentration dependence of phase transition temperature and polarization, whereas the decrease of electrocaloric effect at phase transition at higher concentrations of Ca can be explained by assuming increasing concentration of polar nanoregions. The role of thermal depoling in the case of electric-field-induced phase transition is shown.

Original language	English
Article number	6863858
Pages (from-to)	1364-1367
Number of pages	4
Journal	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume	61
Issue number	8
DOIs	https://doi.org/10.1109/TUFFC.2014.3044
Publication status	Published - Aug 2014

OECD Field of Science

1.3 Physical Sciences

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10.1109/TUFFC.2014.3044

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title = "Phase transitions and electrocaloric effect in Ca-Modified Na1/2Bi1/2TiO3-SrTiO3-PbTiO3 solid solutions",

abstract = "The electrocaloric effect as a function of Ca concentration is studied in 0.4Na1/2Bi1/2TiO3-(0.4-x)SrTiO3-0.2PbTiO3-xCaTiO3. Weak influence of Ca at low concentrations corresponds to the previously established concentration dependence of phase transition temperature and polarization, whereas the decrease of electrocaloric effect at phase transition at higher concentrations of Ca can be explained by assuming increasing concentration of polar nanoregions. The role of thermal depoling in the case of electric-field-induced phase transition is shown.",

author = "Marija Dunce and Eriks Birks and Jani Per{\"a}ntie and Juha Hagberg and Maija Antonova and Andris Sternberg",

year = "2014",

month = aug,

doi = "10.1109/TUFFC.2014.3044",

language = "English",

volume = "61",

pages = "1364--1367",

journal = "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control",

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T1 - Phase transitions and electrocaloric effect in Ca-Modified Na1/2Bi1/2TiO3-SrTiO3-PbTiO3 solid solutions

AU - Dunce, Marija

AU - Birks, Eriks

AU - Peräntie, Jani

AU - Hagberg, Juha

AU - Antonova, Maija

AU - Sternberg, Andris

PY - 2014/8

Y1 - 2014/8

N2 - The electrocaloric effect as a function of Ca concentration is studied in 0.4Na1/2Bi1/2TiO3-(0.4-x)SrTiO3-0.2PbTiO3-xCaTiO3. Weak influence of Ca at low concentrations corresponds to the previously established concentration dependence of phase transition temperature and polarization, whereas the decrease of electrocaloric effect at phase transition at higher concentrations of Ca can be explained by assuming increasing concentration of polar nanoregions. The role of thermal depoling in the case of electric-field-induced phase transition is shown.

AB - The electrocaloric effect as a function of Ca concentration is studied in 0.4Na1/2Bi1/2TiO3-(0.4-x)SrTiO3-0.2PbTiO3-xCaTiO3. Weak influence of Ca at low concentrations corresponds to the previously established concentration dependence of phase transition temperature and polarization, whereas the decrease of electrocaloric effect at phase transition at higher concentrations of Ca can be explained by assuming increasing concentration of polar nanoregions. The role of thermal depoling in the case of electric-field-induced phase transition is shown.

UR - https://www.scopus.com/pages/publications/84905235698

U2 - 10.1109/TUFFC.2014.3044

DO - 10.1109/TUFFC.2014.3044

M3 - Article

AN - SCOPUS:84905235698

SN - 0885-3010

VL - 61

SP - 1364

EP - 1367

JO - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

IS - 8

M1 - 6863858

ER -

Phase transitions and electrocaloric effect in Ca-Modified Na1/2Bi1/2TiO3-SrTiO3-PbTiO3 solid solutions

Abstract

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