Depoling and fatigue behavior of Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal at megahertz frequencies under bipolar electric field

Zhaojiang Chen; Shiyang Li; Yang Zhang; Wenwu Cao

doi:10.1063/1.4982895

Depoling and fatigue behavior of Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystal at megahertz frequencies under bipolar electric field

Zhaojiang Chen, Shiyang Li, Yang Zhang, Wenwu Cao

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Bipolar electric field induced degradation in [001]_c poled Pb(Mg_1/3Nb_2/3)O₃-0.29PbTiO₃ (PMN-0.29PT) single crystals was investigated at megahertz frequencies. The electromechanical coupling factor k_t, dielectric constant ε_r, dielectric loss D, and piezoelectric constant d₃₃ were measured as a function of amplitude, frequency, and number of cycles of the applied electric field. Our results showed that samples degrade rapidly when the field amplitude is larger than a critical value due to the onset of domain switching. We define this critical value as the effective coercive field E_c at high frequencies, which increases drastically with frequency. We also demonstrate an effective counter-depoling method by using a dc bias, which could help the design of high field driven devices based on PMN-PT single crystals and operated at megahertz frequencies.

Original language	English (US)
Article number	174101
Journal	Journal of Applied Physics
Volume	121
Issue number	17
DOIs	https://doi.org/10.1063/1.4982895
State	Published - May 7 2017

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.4982895

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title = "Depoling and fatigue behavior of Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal at megahertz frequencies under bipolar electric field",

abstract = "Bipolar electric field induced degradation in [001]c poled Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 (PMN-0.29PT) single crystals was investigated at megahertz frequencies. The electromechanical coupling factor kt, dielectric constant εr, dielectric loss D, and piezoelectric constant d33 were measured as a function of amplitude, frequency, and number of cycles of the applied electric field. Our results showed that samples degrade rapidly when the field amplitude is larger than a critical value due to the onset of domain switching. We define this critical value as the effective coercive field Ec at high frequencies, which increases drastically with frequency. We also demonstrate an effective counter-depoling method by using a dc bias, which could help the design of high field driven devices based on PMN-PT single crystals and operated at megahertz frequencies.",

author = "Zhaojiang Chen and Shiyang Li and Yang Zhang and Wenwu Cao",

note = "Funding Information: This research was supported in part by the National Key Basic Research Program (973) of China under Grant No. 2013CB632900 and the NIH under Grant No. P41-EB2182. One of the authors (Zhaojiang Chen) acknowledges the support from the National Natural Science Foundation of China (Grants Nos. 11304286 and 51575344). Publisher Copyright: {\textcopyright} 2017 Author(s).",

year = "2017",

month = may,

day = "7",

doi = "10.1063/1.4982895",

language = "English (US)",

volume = "121",

journal = "Journal of Applied Physics",

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T1 - Depoling and fatigue behavior of Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal at megahertz frequencies under bipolar electric field

AU - Chen, Zhaojiang

AU - Li, Shiyang

AU - Zhang, Yang

AU - Cao, Wenwu

N1 - Funding Information: This research was supported in part by the National Key Basic Research Program (973) of China under Grant No. 2013CB632900 and the NIH under Grant No. P41-EB2182. One of the authors (Zhaojiang Chen) acknowledges the support from the National Natural Science Foundation of China (Grants Nos. 11304286 and 51575344). Publisher Copyright: © 2017 Author(s).

PY - 2017/5/7

Y1 - 2017/5/7

N2 - Bipolar electric field induced degradation in [001]c poled Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 (PMN-0.29PT) single crystals was investigated at megahertz frequencies. The electromechanical coupling factor kt, dielectric constant εr, dielectric loss D, and piezoelectric constant d33 were measured as a function of amplitude, frequency, and number of cycles of the applied electric field. Our results showed that samples degrade rapidly when the field amplitude is larger than a critical value due to the onset of domain switching. We define this critical value as the effective coercive field Ec at high frequencies, which increases drastically with frequency. We also demonstrate an effective counter-depoling method by using a dc bias, which could help the design of high field driven devices based on PMN-PT single crystals and operated at megahertz frequencies.

AB - Bipolar electric field induced degradation in [001]c poled Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 (PMN-0.29PT) single crystals was investigated at megahertz frequencies. The electromechanical coupling factor kt, dielectric constant εr, dielectric loss D, and piezoelectric constant d33 were measured as a function of amplitude, frequency, and number of cycles of the applied electric field. Our results showed that samples degrade rapidly when the field amplitude is larger than a critical value due to the onset of domain switching. We define this critical value as the effective coercive field Ec at high frequencies, which increases drastically with frequency. We also demonstrate an effective counter-depoling method by using a dc bias, which could help the design of high field driven devices based on PMN-PT single crystals and operated at megahertz frequencies.

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Depoling and fatigue behavior of Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystal at megahertz frequencies under bipolar electric field

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