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Electric field-induced tetragonal to orthorhombic phase transitions in [110]c-oriented BaTiO3 single crystals

Franzbach, Daniel and Gu, Y. J. and Chen, L. Q. and Webber, Kyle G. (2012):
Electric field-induced tetragonal to orthorhombic phase transitions in [110]c-oriented BaTiO3 single crystals.
101, In: Applied Physics Letters, (23), American Institute of Physics, pp. 232904(1-4), ISSN 00036951, [Online-Edition: http://dx.doi.org/10.1063/1.4769368],
[Article]

Abstract

Electric field-induced phase transitions in [110]c-oriented BaTiO3 single crystals were studied by macroscopic electrical measurements in the temperature range from 20 °C to 50 °C. Discontinuous, hysteretic jumps in the polarization and strain were observed, indicating a tetragonal ↔ orthorhombic phase transition. The critical electric field to induce the transition was found to shift to higher values with increasing temperature. The Landau-Devonshire theory was used to analyze the observed electric field-induced T ↔ O phase transitions.

Item Type: Article
Erschienen: 2012
Creators: Franzbach, Daniel and Gu, Y. J. and Chen, L. Q. and Webber, Kyle G.
Title: Electric field-induced tetragonal to orthorhombic phase transitions in [110]c-oriented BaTiO3 single crystals
Language: English
Abstract:

Electric field-induced phase transitions in [110]c-oriented BaTiO3 single crystals were studied by macroscopic electrical measurements in the temperature range from 20 °C to 50 °C. Discontinuous, hysteretic jumps in the polarization and strain were observed, indicating a tetragonal ↔ orthorhombic phase transition. The critical electric field to induce the transition was found to shift to higher values with increasing temperature. The Landau-Devonshire theory was used to analyze the observed electric field-induced T ↔ O phase transitions.

Journal or Publication Title: Applied Physics Letters
Volume: 101
Number: 23
Publisher: American Institute of Physics
Uncontrolled Keywords: barium compounds, dielectric hysteresis, dielectric polarisation, ferroelectric transitions, relaxor ferroelectrics
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Elektromechanik von Oxiden
11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
Zentrale Einrichtungen
Exzellenzinitiative
Exzellenzinitiative > Graduate Schools > Graduate School of Computational Engineering (CE)
Exzellenzinitiative > Graduate Schools
Date Deposited: 24 Jan 2013 13:04
Official URL: http://dx.doi.org/10.1063/1.4769368
Identification Number: doi:10.1063/1.4769368
Funders: D.J.F. wants to thank the Graduate School of Computational Engineering for financial support., K.G.W. gratefully acknowledges the support of the Deutsche Forschungsgemeinschaft under WE4972/1-1., The work at Penn State is supported by the National Science Foundation under DMR-1210588, DMR- 0908718, DMR-0820404, and DMR-1006541.
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