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Issue 11, 2018
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Electro-caloric effect in a BCZT single crystal

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Abstract

The electrocaloric effect of the [001]-oriented (Ba,Ca)(Zr,Ti)O3 (BCZT) single crystal was investigated in a wide temperature range from −100 °C to the Curie temperature (122 °C). An electrocaloric strength of 0.105 K cm kV−1 (at 10 kV cm−1 and 124 °C) and 0.006 K cm kV−1 (at 10 kV cm−1 and 30 °C) was obtained. Furthermore, the coexistence of the negative and positive electrocaloric effects was observed for the first time in the BCZT single crystal. The negative ECE was attributed to the non-collinearity of the polarization and electric field applied on the BCZT single crystal based on the observed domain structure evolution and Landau calculation.

Graphical abstract: Electro-caloric effect in a BCZT single crystal

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Publication details

The article was received on 26 Nov 2017, accepted on 02 Feb 2018 and first published on 05 Feb 2018


Article type: Paper
DOI: 10.1039/C7CE02040F
Citation: CrystEngComm, 2018,20, 1597-1602
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    Electro-caloric effect in a BCZT single crystal

    D. Liu, Q. Li and Q. Yan, CrystEngComm, 2018, 20, 1597
    DOI: 10.1039/C7CE02040F

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