University of Oulu

Peräntie, J., Hagberg, J., Uusimäki, A., Tian, J., Han, P. (2012) Characteristics of electric-field-induced polarization rotation in 〈001〉-poled Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals close to the morphotropic phase boundary. Journal of Applied Physics, 112 (3), 034117. doi:10.1063/1.4745902

Characteristics of electric-field-induced polarization rotation in 〈001〉-poled Pb(Mg₁/₃Nb₂/₃)O₃-PbTiO₃ single crystals close to the morphotropic phase boundary

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Author: Peräntie, J.1; Hagberg, J.1; Uusimäki, A.1;
Organizations: 1Microelectronics and Materials Physics Laboratories, University of Oulu, P.O. Box 4500, 90014 Oulu, Finland
2HC Materials Corporation, 479 Quadrangle Dr., Suite E, Bolingbrook, Illinois 60440, USA
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1 MB)
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Language: English
Published: American Institute of Physics, 2012
Publish Date: 2017-08-18


The special characteristics of polarization rotation and accompanying electric-field-induced ferroelectric-ferroelectric phase transitions in 〈001〉-poled Pb(Mg₁/₃Nb₂/₃)₁₋ₓTiₓO₃ (x = 27.4, 28,8, and 30.7 mol %) single crystals close to the morphotropic phase boundary region were studied by means of dielectric and thermal measurements as a function of a unipolar electric field at various temperatures. Discontinuous first-order-type phase transition behavior was evidenced by distinct and sharp changes in polarization and thermal responses with accompanying hysteresis as a function of the electric field. All compositions of crystals showed either one or two reversible discontinuities along the polarization rotation paths, which can be understood by electric-field-induced phase transition sequences to the tetragonal phase through different monoclinic phases previously observed along the polarization rotation path. Together with increasing polarization, a field-induced reversible decrease in temperature was observed with increasing electric field, indicating increased dipolar entropy during the electric-field-induced phase transitions. Constructed electric field-temperature phase diagrams based on the polarization and thermal data suggest that the complex polarization rotation path extends to a wider composition range than previously observed. The measured thermal response showed that a transition from the monoclinic to the tetragonal phase produced a greater thermal change in comparison with a transition within two monoclinic phases.

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Series: Journal of applied physics
ISSN: 0021-8979
ISSN-E: 1089-7550
ISSN-L: 0021-8979
Volume: 112
Article number: 034117
DOI: 10.1063/1.4745902
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
216 Materials engineering
Funding: J.P. gratefully acknowledges the Graduate School in Electronics, Telecommunications and Automation (GETA), the Nokia Foundation, the Jenny and Antti Wihuri Foundation, the Tauno Tönning Foundation, the Ulla Tuominen Foundation, the Riitta and Jorma J. Takanen Foundation, the Seppo Säynäjäkangas Science Foundation, the Kaute Foundation, and the Finnish Cultural Foundation for the financial support of this work.
Copyright information: © 2012 American Institute of Physics. Published in this repository with the kind permission of the publisher.