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Title: Kinetic electrocaloric effect and giant net cooling of lead-free ferroelectric refrigerants
Authors: Bai, Yang
Zheng, Guangping
Shi, San-qiang
Subjects: Barium compounds
Differential scanning calorimetry
Ferroelectric ceramics
Ferroelectric thin films
Issue Date: 15-Nov-2010
Publisher: American Institute of Physics
Source: Journal of applied physics, 15 Nov. 2010, v. 108, no. 10, 104102, p. 1-4.
Abstract: The electrocaloric effect of BaTiO₃ multilayer thick film structure was investigated by direct measurement using differential scanning calorimeter. The samples show a giant electrocaloric effect of 0.89 J/g under E=176 kV/cm, which also depends on the varying rate of applied field, following a general power-law relation. Based on the large net-cooling (0.37 J/g) resulting from the difference in the varying rates of rising and falling fields, the kinetic electrocaloric effect provides a solution for the design of refrigeration cycle in ferroelectric microrefrigerator.
Rights: © 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Y. Bai, G. P. Zheng & S. Q. Shi, J. Appl. Phys. 108, 104102 (2010) and may be found at
Type: Journal/Magazine Article
DOI: 10.1063/1.3511342
ISSN: 0021-8979 (print)
1089-7550 (online)
Appears in Collections:ME Journal/Magazine Articles

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