Dielectric relaxation and local domain structures of ferroelectric PIMNT and PMNT single crystals

Kai Li; Enwei Sun; Xudong Qi; Bin Yang; Jian Liu; Wenwu Cao

doi:10.1111/jace.16849

Dielectric relaxation and local domain structures of ferroelectric PIMNT and PMNT single crystals

Kai Li, Enwei Sun, Xudong Qi, Bin Yang, Jian Liu, Wenwu Cao

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Abstract

Dielectric relaxation properties of ternary Pb(In_1/2Nb_1/2)O₃-0.49Pb(Mg_1/3Nb_2/3)O₃-0.27PbTiO₃ (PIMNT27) and binary Pb(Mg_1/3Nb_2/3)O₃-0.27PbTiO₃ (PMNT27) single crystals have been investigated. The dielectric constant peak temperature T_m with frequency obeys the Vogel-Fulcher (V-F) law. The dielectric constants at temperatures above T_m can be described by the Lorenz-type relationship. The fitting parameter δ_A and ΔT_m of PIMNT27 are higher than those of PMNT27, indicating stronger relaxation in ternary PIMNT system. Local nanodomain structures were measured by the piezoelectric force microscopy (PFM). The average autocorrelation function technique was applied to quantify these nanoscale domain patterns. The PIMNT27 exhibits smaller size nanodomains and shorter mean local short-range correlation length compared to PMNT27. The enhanced local disorder in PIMNT is related to the introduction of In³⁺ in PMNT system, which can enhance the disorder of B-site ions. In addition, the evolution of local polarization rotation under a step-increased tip dc voltage and the mean local short-range correlation length <ξ> as a function of dc voltage were obtained for both PIMNT27 and PMNT27 single crystals, which are crucial parameters for the understanding of the relationship between dielectric relaxation and local domain structures in relaxor-PbTiO₃ systems.

Original language	English (US)
Pages (from-to)	1744-1754
Number of pages	11
Journal	Journal of the American Ceramic Society
Volume	103
Issue number	3
DOIs	https://doi.org/10.1111/jace.16849
State	Published - Mar 1 2020

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/jace.16849

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@article{d744dff527384930beeaefb3a3b17d61,

title = "Dielectric relaxation and local domain structures of ferroelectric PIMNT and PMNT single crystals",

abstract = "Dielectric relaxation properties of ternary Pb(In1/2Nb1/2)O3-0.49Pb(Mg1/3Nb2/3)O3-0.27PbTiO3 (PIMNT27) and binary Pb(Mg1/3Nb2/3)O3-0.27PbTiO3 (PMNT27) single crystals have been investigated. The dielectric constant peak temperature Tm with frequency obeys the Vogel-Fulcher (V-F) law. The dielectric constants at temperatures above Tm can be described by the Lorenz-type relationship. The fitting parameter δA and ΔTm of PIMNT27 are higher than those of PMNT27, indicating stronger relaxation in ternary PIMNT system. Local nanodomain structures were measured by the piezoelectric force microscopy (PFM). The average autocorrelation function technique was applied to quantify these nanoscale domain patterns. The PIMNT27 exhibits smaller size nanodomains and shorter mean local short-range correlation length compared to PMNT27. The enhanced local disorder in PIMNT is related to the introduction of In3+ in PMNT system, which can enhance the disorder of B-site ions. In addition, the evolution of local polarization rotation under a step-increased tip dc voltage and the mean local short-range correlation length <ξ> as a function of dc voltage were obtained for both PIMNT27 and PMNT27 single crystals, which are crucial parameters for the understanding of the relationship between dielectric relaxation and local domain structures in relaxor-PbTiO3 systems.",

author = "Kai Li and Enwei Sun and Xudong Qi and Bin Yang and Jian Liu and Wenwu Cao",

note = "Funding Information: This research was supported in part by the NSFC under grant no. 51572056 and 11304061, the Natural Science Foundation of Heilongjiang Province under grant no. JC2017001, the Harbin Applied Technology Research and Development Project under grant no. 2017RAXXJ003, and the National Key Basic Research Program of China (973 Program) under grant no. 2013CB632900. Publisher Copyright: {\textcopyright} 2019 The American Ceramic Society",

year = "2020",

month = mar,

day = "1",

doi = "10.1111/jace.16849",

language = "English (US)",

volume = "103",

pages = "1744--1754",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

number = "3",

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TY - JOUR

T1 - Dielectric relaxation and local domain structures of ferroelectric PIMNT and PMNT single crystals

AU - Li, Kai

AU - Sun, Enwei

AU - Qi, Xudong

AU - Yang, Bin

AU - Liu, Jian

AU - Cao, Wenwu

N1 - Funding Information: This research was supported in part by the NSFC under grant no. 51572056 and 11304061, the Natural Science Foundation of Heilongjiang Province under grant no. JC2017001, the Harbin Applied Technology Research and Development Project under grant no. 2017RAXXJ003, and the National Key Basic Research Program of China (973 Program) under grant no. 2013CB632900. Publisher Copyright: © 2019 The American Ceramic Society

PY - 2020/3/1

Y1 - 2020/3/1

N2 - Dielectric relaxation properties of ternary Pb(In1/2Nb1/2)O3-0.49Pb(Mg1/3Nb2/3)O3-0.27PbTiO3 (PIMNT27) and binary Pb(Mg1/3Nb2/3)O3-0.27PbTiO3 (PMNT27) single crystals have been investigated. The dielectric constant peak temperature Tm with frequency obeys the Vogel-Fulcher (V-F) law. The dielectric constants at temperatures above Tm can be described by the Lorenz-type relationship. The fitting parameter δA and ΔTm of PIMNT27 are higher than those of PMNT27, indicating stronger relaxation in ternary PIMNT system. Local nanodomain structures were measured by the piezoelectric force microscopy (PFM). The average autocorrelation function technique was applied to quantify these nanoscale domain patterns. The PIMNT27 exhibits smaller size nanodomains and shorter mean local short-range correlation length compared to PMNT27. The enhanced local disorder in PIMNT is related to the introduction of In3+ in PMNT system, which can enhance the disorder of B-site ions. In addition, the evolution of local polarization rotation under a step-increased tip dc voltage and the mean local short-range correlation length <ξ> as a function of dc voltage were obtained for both PIMNT27 and PMNT27 single crystals, which are crucial parameters for the understanding of the relationship between dielectric relaxation and local domain structures in relaxor-PbTiO3 systems.

AB - Dielectric relaxation properties of ternary Pb(In1/2Nb1/2)O3-0.49Pb(Mg1/3Nb2/3)O3-0.27PbTiO3 (PIMNT27) and binary Pb(Mg1/3Nb2/3)O3-0.27PbTiO3 (PMNT27) single crystals have been investigated. The dielectric constant peak temperature Tm with frequency obeys the Vogel-Fulcher (V-F) law. The dielectric constants at temperatures above Tm can be described by the Lorenz-type relationship. The fitting parameter δA and ΔTm of PIMNT27 are higher than those of PMNT27, indicating stronger relaxation in ternary PIMNT system. Local nanodomain structures were measured by the piezoelectric force microscopy (PFM). The average autocorrelation function technique was applied to quantify these nanoscale domain patterns. The PIMNT27 exhibits smaller size nanodomains and shorter mean local short-range correlation length compared to PMNT27. The enhanced local disorder in PIMNT is related to the introduction of In3+ in PMNT system, which can enhance the disorder of B-site ions. In addition, the evolution of local polarization rotation under a step-increased tip dc voltage and the mean local short-range correlation length <ξ> as a function of dc voltage were obtained for both PIMNT27 and PMNT27 single crystals, which are crucial parameters for the understanding of the relationship between dielectric relaxation and local domain structures in relaxor-PbTiO3 systems.

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DO - 10.1111/jace.16849

M3 - Article

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SN - 0002-7820

VL - 103

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EP - 1754

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 3

ER -

Dielectric relaxation and local domain structures of ferroelectric PIMNT and PMNT single crystals

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