DOI: 10.1002/pssa.201127695. Entropy‐change measurement of electrocaloric effect of BaTiO<sub>3</sub> single crystal

Entropy‐change measurement of electrocaloric effect of BaTiO3 single crystal

10.1002/pssa.201127695

Crossref journal-article

Wiley

physica status solidi (a) (311)

Abstract

AbstractWe demonstrated a characterization method of entropy‐change measurement for the study of the electrocaloric effect (ECE). After the specific heat capacity was measured under different applied fields using a differential scanning calorimeter (DSC) accompanied with DC power supply, the electrocaloric ΔS was calculated from the temperature integral of specific heat capacities based on the basic definition of entropy. The ΔS–T curve of BaTiO3 single crystal showed a sharp peak around Tc, which increased gradually and shifted to higher temperature with the rise of applied field. A high ECE with ΔS = 1.9 J/kg K and ΔT = 1.6 K is achieved under a quite low field of 10 kV/cm. The results agreed with the thermodynamic calculation. It provides a direct, precise, and time‐efficient method for the electrocaloric studies.

Bibliography

Bai, Y., Ding, K., Zheng, G., Shi, S., & Qiao, L. (2012). Entropyâchange measurement of electrocaloric effect of BaTiO3 single crystal. Physica Status Solidi (a), 209(5), 941â944. Portico.

Authors 5

Yang Bai (first)
Kai Ding (additional)
Guang‐Ping Zheng (additional)
San‐Qiang Shi (additional)
Lijie Qiao (additional)

References 23 Referenced 95

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Dates

Type	When
Created	13 years, 6 months ago (Feb. 13, 2012, 5:21 a.m.)
Deposited	1 year, 10 months ago (Oct. 17, 2023, 9:45 a.m.)
Indexed	2 weeks, 4 days ago (Aug. 12, 2025, 5:23 p.m.)
Issued	13 years, 6 months ago (Feb. 13, 2012)
Published	13 years, 6 months ago (Feb. 13, 2012)
Published Online	13 years, 6 months ago (Feb. 13, 2012)
Published Print	13 years, 3 months ago (May 1, 2012)

Funders 0

None

BibTeX

@article{Bai_2012, title={Entropy‐change measurement of electrocaloric effect of BaTiO3 single crystal}, volume={209}, ISSN={1862-6319}, url={http://dx.doi.org/10.1002/pssa.201127695}, DOI={10.1002/pssa.201127695}, number={5}, journal={physica status solidi (a)}, publisher={Wiley}, author={Bai, Yang and Ding, Kai and Zheng, Guang‐Ping and Shi, San‐Qiang and Qiao, Lijie}, year={2012}, month=feb, pages={941–944} }

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