Temperature dependence of dielectric properties and domain structure of (K,Na)(Nb,Ta)O₃ single crystal

Hui Maa Department of Physics, School of Science, Harbin University of Science and Technology, Harbin, ChinaView further author information

Junjun Wanga Department of Physics, School of Science, Harbin University of Science and Technology, Harbin, ChinaCorrespondence[email protected]
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Jiaqi Lia Department of Physics, School of Science, Harbin University of Science and Technology, Harbin, ChinaView further author information

Zhiheng Honga Department of Physics, School of Science, Harbin University of Science and Technology, Harbin, ChinaView further author information

Danqing Liub School of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin, ChinaView further author information

Wenping Caoc School of Light Industry, Harbin University of Commerce, Harbin, ChinaView further author information

Fengmin Wua Department of Physics, School of Science, Harbin University of Science and Technology, Harbin, ChinaView further author information

Bin Yangd Condensed Matter Science and Technology Institute, The school of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, ChinaView further author information

Chuntian Chena Department of Physics, School of Science, Harbin University of Science and Technology, Harbin, ChinaView further author information

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Abstract

In this work, the influence of temperature on phase structure, dielectric property and domain structure of (K,Na)(Nb,Ta)O₃ (KNNT) crystal from 20 to 200 °C was studied. The irreversible domain wall motion of single crystal is strongest at phase transition temperature by Rayleigh analysis of dielectric properties. The domain structure in the heating and cooling process of single crystal was observed by means of piezoelectricity microscope. The domain structure changed obviously with temperature and the domain structure change is particularly prominent at the phase transition temperature.

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Funding

This work was supported by the Natural Science Foundation of Heilongjiang Province under Grant No. E2018049, the National Natural Science Foundation of China under Grant No. 51402075.

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Temperature dependence of dielectric properties and domain structure of (K,Na)(Nb,Ta)O₃ single crystal

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Temperature dependence of dielectric properties and domain structure of (K,Na)(Nb,Ta)O₃ single crystal