dc field effect on stability of piezoelectric PZN-0.06PT single crystals under compressive stress

Okawara, Chiaki; Amin, Ahmed

doi:10.1063/1.3193547

Cited by 26 publications

(16 citation statements)

References 19 publications

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“…A dc bias field of ~0.60 MV/m could stabilize the F R state for up to 40 MPa compressive stresses for PMN-30%PT single crystals [450]. Therefore, a stable operation of SONAR projectors fabricated using PMN-PT and PZN-PT single crystals requires the use of a bias electric field [451]. For this reason, crystals with improved thermal stability and higher coercive field, such as PMN-PZT [452] and PIN-PMN-PT [453] single crystals, would be more suitable for sound projectors than PMN-PT single crystals.…”

Section: Device Applicationsmentioning

confidence: 99%

Relaxor-based ferroelectric single crystals: Growth, domain engineering, characterization and applications

Sun

Cao

2014

Progress in Materials Science

544

264

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In the past decade, domain engineered relaxor-PT ferroelectric single crystals, including (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT), (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 (PZN-PT) and (1-x-y)Pb(In1/2Nb1/2)O3-yPb(Mg1/3Nb2/3)O3-xPbTiO3 (PIN-PMN-PT), with compositions near the morphotropic phase boundary (MPB) have triggered a revolution in electromechanical devices owing to their giant piezoelectric properties and ultra-high electromechanical coupling factors. Compared to traditional PbZr1-xTixO3 (PZT) ceramics, the piezoelectric coefficient d33 is increased by a factor of 5 and the electromechanical coupling factor k33 is increased from < 70% to > 90%. Many emerging rich physical phenomena, such as charged domain walls, multi-phase coexistence, domain pattern symmetries, etc., have posed challenging fundamental questions for scientists. The superior electromechanical properties of these domain engineered single crystals have prompted the design of a new generation electromechanical devices, including sensors, transducers, actuators and other electromechanical devices, with greatly improved performance. It took less than 7 years from the discovery of larger size PMN-PT single crystals to the commercial production of the high-end ultrasonic imaging probe “PureWave”. The speed of development is unprecedented, and the research collaboration between academia and industrial engineers on this topic is truly intriguing. It is also exciting to see that these relaxor-PT single crystals are being used to replace traditional PZT piezoceramics in many new fields outside of medical imaging. The new ternary PIN-PMN-PT single crystals, particularly the ones with Mn-doping, have laid a solid foundation for innovations in high power acoustic projectors and ultrasonic motors, hinting another revolution in underwater SONARs and miniature actuation devices. This article intends to provide a comprehensive review on the development of relaxor-PT single crystals, spanning material discovery, crystal growth techniques, domain engineering concept, and full-matrix property characterization all the way to device innovations. It outlines a truly encouraging story in materials science in the modern era. All key references are provided and 30 complete sets of material parameters for different types of relaxor-PT single crystals are listed in the Appendix. It is the intension of this review article to serve as a resource for those who are interested in basic research and practical applications of these relaxor-PT single crystals. In addition, possible mechanisms of giant piezoelectric properties in these domain-engineered relaxor-PT systems will be discussed based on contributions from polarization rotation and charged domain walls.

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Section: Device Applicationsmentioning

confidence: 99%

Relaxor-based ferroelectric single crystals: Growth, domain engineering, characterization and applications

Sun

Cao

2014

Progress in Materials Science

544

264

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“…Relaxor ferroelectric single crystals were found to possess very high piezoelectric coefficients and electric field induced strains [1][2][3][4][5] and have been widely applied to ultrasonic transducers and transformers. [6][7][8][9][10] Most oxygen-octahedral ferroelectrics, which exhibit excellent electromechanical properties, usually have outstanding optical properties.…”

Section: Introductionmentioning

confidence: 99%

Composition dependence of dispersion and bandgap properties in PZN-xPT single crystals

Wang

et al. 2011

Journal of Applied Physics

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Refractive indices and optical transmittance spectra of (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 (PZN-xPT) single crystals poled along [001] direction have been investigated. Cauchy dispersion equations of the refractive indices were obtained by least square fitting, which can be used to calculate the refractive indices in the low absorption wavelength range. After poled along [001] direction, the transmittance of PZN–12%PT single crystal is more than 65% from 0.5 to 5.8 μm, which is much higher than that of PZN–5%PT and PZN–8%PT single crystals. Optical energy bandgap was obtained from absorption coefficient spectra. Our results show that as the PT content increases, the refractive indices of PZN-xPT single crystals increase, while the optical bandgap decreases.

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“…It is therefore important to determine not only the small signal characteristics, but also whether the materials maintain the bandwidth and linear performance under a high driving field and a prestress condition. In recent years, more studies have been done on relaxor-PT crystals, including PMN-PT, pure and Mn-doped PIN-PMN-PT crystals, under a combination of static compressive stress and high electric field [80][81][82][83][84][85][86]. The performance of relaxor-PT crystals under dynamic compressive stress has also been evaluated, but only under a small electric field [87,88].…”

Section: Characterization Under a High Electric Field And High Mechanmentioning

confidence: 99%

Advances in the Growth and Characterization of Relaxor-PT-Based Ferroelectric Single Crystals

Luo

Zhang

2014

Crystals

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Abstract:Compared to Pb(Zr 1−x Ti x )O 3 (PZT) polycrystalline ceramics, relaxor-PT single crystals offer significantly improved performance with extremely high electromechanical coupling and piezoelectric coefficients, making them promising materials for piezoelectric transducers, sensors and actuators. The recent advances in crystal growth and characterization of relaxor-PT-based ferroelectric single crystals are reviewed in this paper with emphases on the following topics: (1) the large crystal growth of binary and ternary relaxor-PT-based ferroelectric crystals for commercialization; (2) the composition segregation in the crystals grown from such a solid-solution system and possible solutions to reduce it; (3) the crystal growth from new binary and ternary compositions to expand the operating temperature and electric field; (4) the crystallographic orientation dependence and anisotropic behaviors of relaxor-PT-based ferroelectriccrystals; and (5) the characterization of the dielectric, elastic and piezoelectric properties of the relaxor-PT-based ferroelectriccrystals under small and large electric fields.

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dc field effect on stability of piezoelectric PZN-0.06PT single crystals under compressive stress

Cited by 26 publications

References 19 publications

Relaxor-based ferroelectric single crystals: Growth, domain engineering, characterization and applications

Relaxor-based ferroelectric single crystals: Growth, domain engineering, characterization and applications

Composition dependence of dispersion and bandgap properties in PZN-xPT single crystals

Advances in the Growth and Characterization of Relaxor-PT-Based Ferroelectric Single Crystals

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