Structural Evidence for Strong Coupling between Polarization Rotation and Lattice Strain in Monoclinic Relaxor Ferroelectrics

Liu, Hui; Chen, Jun; Fan, Longlong; Ren, Yang; Hu, Lei; Guo, Fangmin; Deng, Jinxia; Xing, Xianran

doi:10.1021/acs.chemmater.7b01552

Cited by 36 publications

(50 citation statements)

References 44 publications

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“…According to the definition of M A , the P x =P y <P z , and the angle between [001] and the polarization is within 0° ∼ 54.7°, whereas M B phase has P x =P y >P z and angle around 54.7° ∼ 90°. 30,46 Therefore, for the unpoled state, the structure was confirmed as M A .…”

mentioning

confidence: 86%

“…Only most recently, the intrinsic contribution of PMN-0.325PT ceramics have been studied by Liu et al and an electricfield-driven continuous polarization rotation in monoclinic phases was proposed as the mechanism. 30,31 However, considering the high complexity of PMN-xPT piezoceramics, direct evidence of the intrinsic electric-field-induced effects at both the long-range and local scale are not yet available. Therefore, in order to clarify the origin of ultrahigh piezoelectricity in PMN-…”

Section: Introductionmentioning

confidence: 99%

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Field-induced polarization rotation and phase transitions in 0.70Pb(Mg1/3Nb2/
Hou
¹
,
Usher
²
,
Fulanović
³

et al. 2018
Phys. Rev. B
28
1
9
0
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Changes to the crystal structure of 0.70Pb(Mg 1/3 Nb 2/3)O 3-0.30PbTiO 3 (PMN-0.30PT) piezoceramic under application of electric fields at the long-range and local scale are revealed by in situ high-energy X-ray diffraction (XRD) and pair distribution function (PDF) analyses, respectively. The crystal structure of unpoled samples is identified as monoclinic Cm at both the long-range and local scale. In situ XRD results suggest that field-induced polarization rotation and phase transitions occur at specific field strengths. A polarization rotation pathway is proposed based on the Bragg peak behaviors and the Le Bail fitting results of the in situ XRD patterns. The PDF results show systematic changes to the structures at the local scale, which is in agreement with the changes inferred from the in situ XRD study. More importantly, our results prove that polarization rotation can be detected and determined in a polycrystalline relaxor ferroelectric. This study supports the idea that multiple contributions, specifically ferroelectricferroelectric phase transition and polarization rotation, are responsible for the high piezoelectric properties at the morphotropic phase boundary of PMN-xPT piezoceramics.

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mentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Field-induced polarization rotation and phase transitions in 0.70Pb(Mg1/3Nb2/
Hou
¹
,
Usher
²
,
Fulanović
³

et al. 2018
Phys. Rev. B
28
1
9
0
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“…It is commonly considered that in traditional lead-based piezoelectric ceramics, the boundary of rhombohedral (R) and tetragonal (T) phases is located in the MPB, where the free energy difference between R and T phases is small, thus facilitating the alignment of domains under electric field. More recently, the discovery of a low-symmetry monoclinic phase is believed to explain the high electromechanical response, [19][20][21][22][23][24][25] since its polarization can rotate with the electric field and generate large intrinsic lattice strain. [23][24][25] It has been corroborated in various high-performance systems, such as Pb(Zr,Ti)O 3 (PZT), PMN-PT, and Pb(Zn 1/3 Nb 2/3 )O 3 -PbTiO 3 (PZN-PT).…”

Section: Introductionmentioning

confidence: 99%

Systematic study of structure and piezoelectric properties of Pb(Ni_1/3Nb_2/3)O₃‐PbTiO₃ by in situ synchrotron diffraction

et al. 2020

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Lead-based ferroelectric materials are extensively employed in industrial applications and everyday life due to their excellent ferroelectric and piezoelectric performance. Pb(Ni 1/3 Nb 2/3)O 3-PbTiO 3 (PNN-PT) is a typical binary relaxor ferroelectric system, whose refined structure and piezoelectric properties have not been systematically investigated. In this study, evolution of electric field-based crystal structure and variation of ferroelectric, piezoelectric, as well as dielectric properties with composition and temperature of (1 − x)PNN-xPT (0.32 ≤ x ≤ 0.36) ceramics were studied in full detail. The optimal performance is obtained at 0.66PNN-0.34PT with maximum piezoelectric coefficient d 33 of 560 pC/N and large dielectric constant of 28 684. In situ high-energy synchrotron diffraction was employed to determine structural origins of enhanced properties of 0.66PNN-0.34PT. Interestingly, crystal structure of poled 0.66PNN-0.34PT ceramic is determined to be single monoclinic phase. Furthermore, both its lattice parameters and volume variation present butterfly shape under electric field. It is demonstrated that macroscopic strain of 0.66PNN-0.34PT stems mainly from intrinsic structure. The present study provides evidence for the relationship between microstructure and macroscopic properties, which is beneficial to the design of new materials with piezoelectric properties.

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“…It is worth exploring the nature of the huge difference in piezoelectric response. By using the present method of in-situ high-energy SXRD technology combined with appropriate 2D scattering geometry, the effect of electric field induced texture can be neglected at the 45° sector [32,33,39], which allows the reliable estimation of phase content. However, the diffraction patterns at the 0° sector, which is parallel to the electric field direction, can be used to quantify the domain switching fraction and lattice strains [17,32,33].…”

mentioning

confidence: 99%

“…The extrinsic contribution can be maximized though domain engineering [4,50]. The intrinsic structure-related contribution can be largely promoted by flexible continuous polarization rotation via single monoclinic structure [33,39,51,52]. For the MPB piezoceramics, the high piezoelectric performance can be achieved via the enhancement of reversible phase transformation by optimizing extrinsic factors, such as grain size, and domain wall density.…”

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confidence: 99%

Role of Reversible Phase Transformation for Strong Piezoelectric Performance at the Morphotropic Phase Boundary

et al. 2018

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A functional material with coexisting energetically equivalent phases often exhibits extraordinary properties such as piezoelectricity, ferromagnetism, and ferroelasticity, which is simultaneously accompanied by field-driven reversible phase transformation. The study on the interplay between such phase transformation and the performance is of great importance. Here, we have experimentally revealed the important role of field-driven reversible phase transformation in achieving enhanced electromechanical properties using in situ high-energy synchrotron x-ray diffraction combined with 2D geometry scattering technology, which can establish a comprehensive picture of piezoelectric-related microstructural evolution. High-throughput experiments on various Pb/Bi-based perovskite piezoelectric systems suggest that reversible phase transformation can be triggered by an electric field at the morphotropic phase boundary and the piezoelectric performance is highly related to the tendency of electric-field-driven phase transformation. A strong tendency of phase transformation driven by an electric field generates peak piezoelectric response. Further, phase-field modeling reveals that the polarization alignment and the piezoelectric response can be much enhanced by the electric-field-driven phase transformation. The proposed mechanism will be helpful to design and optimize the new piezoelectrics, ferromagnetics, or other related functional materials.

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Structural Evidence for Strong Coupling between Polarization Rotation and Lattice Strain in Monoclinic Relaxor Ferroelectrics

Cited by 36 publications

References 44 publications

Field-induced polarization rotation and phase transitions in 0.70Pb(Mg1/3Nb2/
Hou
¹
,
Usher
²
,
Fulanović
³

et al. 2018
Phys. Rev. B
28
1
9
0
View full text Add to dashboard Cite

Field-induced polarization rotation and phase transitions in 0.70Pb(Mg1/3Nb2/
Hou
¹
,
Usher
²
,
Fulanović
³

et al. 2018
Phys. Rev. B
28
1
9
0
View full text Add to dashboard Cite

Systematic study of structure and piezoelectric properties of Pb(Ni_1/3Nb_2/3)O₃‐PbTiO₃ by in situ synchrotron diffraction

Role of Reversible Phase Transformation for Strong Piezoelectric Performance at the Morphotropic Phase Boundary

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Structural Evidence for Strong Coupling between Polarization Rotation and Lattice Strain in Monoclinic Relaxor Ferroelectrics

Cited by 36 publications

References 44 publications

Field-induced polarization rotation and phase transitions in 0.70Pb(Mg1/3Nb2/Hou1, Usher2, Fulanović3 et al. 2018Phys. Rev. B28190View full textAdd to dashboardCite

Field-induced polarization rotation and phase transitions in 0.70Pb(Mg1/3Nb2/Hou1, Usher2, Fulanović3 et al. 2018Phys. Rev. B28190View full textAdd to dashboardCite

Systematic study of structure and piezoelectric properties of Pb(Ni1/3Nb2/3)O3‐PbTiO3 by in situ synchrotron diffraction

Role of Reversible Phase Transformation for Strong Piezoelectric Performance at the Morphotropic Phase Boundary

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Product

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Field-induced polarization rotation and phase transitions in 0.70Pb(Mg1/3Nb2/
Hou
¹
,
Usher
²
,
Fulanović
³

et al. 2018
Phys. Rev. B
28
1
9
0
View full text Add to dashboard Cite

Field-induced polarization rotation and phase transitions in 0.70Pb(Mg1/3Nb2/
Hou
¹
,
Usher
²
,
Fulanović
³

et al. 2018
Phys. Rev. B
28
1
9
0
View full text Add to dashboard Cite

Systematic study of structure and piezoelectric properties of Pb(Ni_1/3Nb_2/3)O₃‐PbTiO₃ by in situ synchrotron diffraction