Surface topography and dielectric properties of polished PMN-PT single crystals

Takahashi, Hideaki; Suzuki, Hirofumi; Namba, Yoshiharu

doi:10.1016/j.cirp.2016.04.105

Cited by 16 publications

(9 citation statements)

References 14 publications

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“…In all samples, a large microstructure region of 20-30 μm that was clearly different from the central region was observed directly under both electrodes. This different microstructure just below the electrodes may be due to residual stress caused during the cutting, grinding, and polishing of the SC plates as recently reported by Namba 43) et al and Takahashi et al 44) They also reported that these different microstructures just below the electrodes disappeared after heat treatment at approximately 300 °C, and the dielectric properties improved. 43,44) Future studies will be needed to determine the optimum heat treatment process for PMN-0.28PT SCs plates.…”

Section: Piezoelectric Properties and Microstructuresupporting

confidence: 66%

Microstructure observation of Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystals by scanning electron microscopy

Xiang,

Sun,

Yamashita

et al. 2023

Jpn. J. Appl. Phys.

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Piezoelectric Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) single crystals (SCs) prepared by the Bridgman method on plates of 0.3 mm thickness were polarized by six different poling methods and their piezoelectric properties were analyzed. The sine wave AC-poled PMN-PT SC showed the best properties: a piezoelectric constant d 33 of 1920 pC N−1 and a free dielectric permittivity of 8050 without any spurious mode vibration. The plates were then broken to observe their microstructures by scanning electron microscopy. Clearly different vertical stripe and horizontal stripe microstructures were observed in the vertical direction of SCs. The differences in SC microstructures on the fracture surface were found to depend on the direction in which compressive and tensile stresses were applied. These results suggest that special attention should be paid when discussing the correlation between piezoelectric properties and SC microstructure, since the structure of piezoelectric SCs can vary depending on the sample geometry and pretreatment method.

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Section: Piezoelectric Properties and Microstructuresupporting

confidence: 66%

Microstructure observation of Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystals by scanning electron microscopy

Xiang,

Sun,

Yamashita

et al. 2023

Jpn. J. Appl. Phys.

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“…Based on our experimental findings, enhanced gold-bonding quality should be possible by decreasing the surface roughness of the PMN-PT substrate before bonding, i.e., the height difference between the individual domains. In principle, this could be achieved by employing polishing liquids presenting pH factors of ∼2 as recently demonstrated 32. Other approaches may be viable, such as performing the mechanical polishing of an already poled PMN-PT substrate.…”

Section: Discussion Of Results and Simulationsmentioning

confidence: 99%

“…In principle, this could be achieved by employing polishing liquids presenting pH factors of ∼2 as recently demonstrated. 32 Other approaches may be viable, such as performing the mechanical polishing of an already poled PMN-PT substrate.…”

Section: Discussion Of Results and Simulationsmentioning

confidence: 99%

Comparison of different bonding techniques for efficient strain transfer using piezoelectric actuators

Ziss

Martín‐Sánchez

Lettner

et al. 2017

Journal of Applied Physics

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In this paper, strain transfer efficiencies from a single crystalline piezoelectric lead magnesium niobate-lead titanate substrate to a GaAs semiconductor membrane bonded on top are investigated using state-of-the-art x-ray diffraction (XRD) techniques and finite-element-method (FEM) simulations. Two different bonding techniques are studied, namely, gold-thermo-compression and polymer-based SU8 bonding. Our results show a much higher strain-transfer for the “soft” SU8 bonding in comparison to the “hard” bonding via gold-thermo-compression. A comparison between the XRD results and FEM simulations allows us to explain this unexpected result with the presence of complex interface structures between the different layers.

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“…18) Previous studies have shown that precision lap polishing and annealing treatments could suppress the property degradation of thin-plate transducers. 19,20) In addition, Kim et al reported that the properties of PIN-PMN-PT thin-plate transducers degraded owing to variations in surface roughness. 21) The surface morphology and internal structure significantly influence the properties of single crystals.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric properties of thin-plate Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystals for high-frequency transducer

Namba¹,

Tanaka²,

Sato³

et al. 2023

Jpn. J. Appl. Phys.

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Thickness dependence of the dielectric and piezoelectric properties of (1-x)Pb(Mg1/3Nb2/3)O3 - xPbTiO3 (PMN-xPT) single crystals (x = 0.28, 0.29, and 0.30) grown using the modified Bridgman method was investigated. After annealing and repoling, the free dielectric constant of 7600 and the dielectric loss lower than 2.1% were obtained for 0.05-mm-thick PMN-0.30PT, which are superior to previously reported properties at similar thicknesses. Although the free dielectric constant of PMN-0.28PT and PMN-0.29PT decreased by up to 10% as the sample thickness decreased from 0.30 to 0.05 mm, it improved after annealing and repoling, and remained stable at each thickness. From sample surface evaluations, a mechanically damaged layer was observed near the ground surface. This layer influences the crystal strain direction and crystal phases, suggesting that it influences the degradation properties.

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Surface topography and dielectric properties of polished PMN-PT single crystals

Cited by 16 publications

References 14 publications

Microstructure observation of Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystals by scanning electron microscopy

Microstructure observation of Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystals by scanning electron microscopy

Comparison of different bonding techniques for efficient strain transfer using piezoelectric actuators

Piezoelectric properties of thin-plate Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystals for high-frequency transducer

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Surface topography and dielectric properties of polished PMN-PT single crystals

Cited by 16 publications

References 14 publications

Microstructure observation of Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals by scanning electron microscopy

Microstructure observation of Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals by scanning electron microscopy

Comparison of different bonding techniques for efficient strain transfer using piezoelectric actuators

Piezoelectric properties of thin-plate Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals for high-frequency transducer

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Product

Resources

About

Microstructure observation of Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystals by scanning electron microscopy

Microstructure observation of Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystals by scanning electron microscopy

Piezoelectric properties of thin-plate Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ single crystals for high-frequency transducer