Neutron and x-ray scattering study of phonon dispersion and diffuse scattering in (Na,Bi)TiO3-xBaTiO3 single crystals near the morphotropic phase boundary

Luo, Chengtao; Bansal, Dipanshu; Li, Jiefang; Viehland, Dwight; Winn, Barry; Ren, Yang; Li, Xiaobing; Luo, Haosu; Delaire, Olivier

doi:10.1103/PhysRevB.96.174108

Title: Neutron and x-ray scattering study of phonon dispersion and diffuse scattering in $(Na, Bi) Ti O_{3} - x BaTi O_{3}$ single crystals near the morphotropic phase boundary

Abstract

Neutron and x-ray scattering measurements were performed on (Na_1/2Bi_1/2)TiO_3-x at % BaTiO₃ (NBT-xBT) single crystals (x = 4, 5, 6.5, and 7.5) across the morphotropic phase boundary (MPB), as a function of both composition and temperature, and probing both structural and dynamical aspects. In addition to the known diffuse scattering pattern near the gamma points, our measurements revealed new, faint superlattice peaks, as well as an extensive diffuse scattering network, revealing a short-range ordering of polar nanoregions (PNR) with a static stacking morphology. Furthermore, in samples with compositions closest to the MPB, our inelastic neutron scattering investigations of the phonon dynamics showed two unusual features in the acoustic phonon branches, between the superlattice points, and between the superlattice points and gamma points, respectively. Finally, these critical elements are not present in the other compositions away from the MPB, which suggests that these features may be related to the tilt modes coupling behavior near the MPB.

Authors:

^[1]; Bansal, Dipanshu ^[2]; Li, Jiefang ^[1]; Viehland, Dwight ^[1]; Winn, Barry ^[3]; Ren, Yang ^[4]; Li, Xiaobing ^[5]; Luo, Haosu ^[5]; Delaire, Olivier ^[6]

Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Materials Science and Engineering
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
Chinese Academy of Sciences (CAS), Beijing (China). Shanghai Inst. of Ceramics
Duke Univ., Durham, NC (United States). Mechanical Engineering and Materials Science Dept.; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division

Publication Date:: Fri Nov 10 00:00:00 EST 2017

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC)

OSTI Identifier:: 1462872

Alternate Identifier(s):: OSTI ID: 1408219; OSTI ID: 1408260; OSTI ID: 1460803

Grant/Contract Number:: AC05-00OR22725; SC0016166; AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 96; Journal Issue: 17; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Ferroelectricity; Phase transitions; Piezoelectricity; Relaxor ferroelectrics; Single crystal materials; Neutron diffraction; X-ray scattering

Citation Formats


                    Luo, Chengtao, Bansal, Dipanshu, Li, Jiefang, Viehland, Dwight, Winn, Barry, Ren, Yang, Li, Xiaobing, Luo, Haosu, and Delaire, Olivier. Neutron and x-ray scattering study of phonon dispersion and diffuse scattering in (Na,Bi)TiO3-xBaTiO3 single crystals near the morphotropic phase boundary.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevB.96.174108.

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                    Luo, Chengtao, Bansal, Dipanshu, Li, Jiefang, Viehland, Dwight, Winn, Barry, Ren, Yang, Li, Xiaobing, Luo, Haosu, & Delaire, Olivier. Neutron and x-ray scattering study of phonon dispersion and diffuse scattering in (Na,Bi)TiO3-xBaTiO3 single crystals near the morphotropic phase boundary.  United States.  https://doi.org/10.1103/PhysRevB.96.174108

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                    Luo, Chengtao, Bansal, Dipanshu, Li, Jiefang, Viehland, Dwight, Winn, Barry, Ren, Yang, Li, Xiaobing, Luo, Haosu, and Delaire, Olivier. Fri .  
"Neutron and x-ray scattering study of phonon dispersion and diffuse scattering in (Na,Bi)TiO3-xBaTiO3 single crystals near the morphotropic phase boundary".  United States.  https://doi.org/10.1103/PhysRevB.96.174108.  https://www.osti.gov/servlets/purl/1462872.

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@article{osti_1462872,

  title        = {Neutron and x-ray scattering study of phonon dispersion and diffuse scattering in (Na,Bi)TiO3-xBaTiO3 single crystals near the morphotropic phase boundary},

  author       = {Luo, Chengtao and Bansal, Dipanshu and Li, Jiefang and Viehland, Dwight and Winn, Barry and Ren, Yang and Li, Xiaobing and Luo, Haosu and Delaire, Olivier},

  abstractNote = {Neutron and x-ray scattering measurements were performed on (Na1/2Bi1/2)TiO3-x at % BaTiO3 (NBT-xBT) single crystals (x = 4, 5, 6.5, and 7.5) across the morphotropic phase boundary (MPB), as a function of both composition and temperature, and probing both structural and dynamical aspects. In addition to the known diffuse scattering pattern near the gamma points, our measurements revealed new, faint superlattice peaks, as well as an extensive diffuse scattering network, revealing a short-range ordering of polar nanoregions (PNR) with a static stacking morphology. Furthermore, in samples with compositions closest to the MPB, our inelastic neutron scattering investigations of the phonon dynamics showed two unusual features in the acoustic phonon branches, between the superlattice points, and between the superlattice points and gamma points, respectively. Finally, these critical elements are not present in the other compositions away from the MPB, which suggests that these features may be related to the tilt modes coupling behavior near the MPB.},

  doi          = {10.1103/PhysRevB.96.174108},

  journal      = {Physical Review B},

  number       = 17,

  volume       = 96,

  place        = {United States},

  year         = {Fri Nov 10 00:00:00 EST 2017},

  month        = {Fri Nov 10 00:00:00 EST 2017}

}

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Works referenced in this record:

Dynamical, scattering and dielectric properties of ferroelectric crystals
journal, March 1969

Cochran, W.
Advances in Physics, Vol. 18, Issue 72
DOI: 10.1080/00018736900101297

Neutron and x-ray diffraction study of cubic [111] field-cooled $Pb ({Mg}_{1 ∕ 3} {Nb}_{2 ∕ 3}) O_{3}$
journal, August 2007

Stock, C.; Xu, Guangyong; Gehring, P. M.
Physical Review B, Vol. 76, Issue 6
DOI: 10.1103/PhysRevB.76.064122

Hierarchical domain structure of lead-free piezoelectric (Na _1/2 Bi _1/2 )TiO ₃ -(K _1/2 Bi _1/2 )TiO ₃ single crystals
journal, May 2016

Luo, Chengtao; Wang, Yaojin; Ge, Wenwei
Journal of Applied Physics, Vol. 119, Issue 17
DOI: 10.1063/1.4948478

Neutron diffuse scattering from polar nanoregions in the relaxor $Pb ({Mg}_{1 / 3} {Nb}_{2 / 3}) O_{3}$
journal, February 2002

Hirota, K.; Ye, Z. -G.; Wakimoto, S.
Physical Review B, Vol. 65, Issue 10
DOI: 10.1103/PhysRevB.65.104105

Current status and prospects of lead-free piezoelectric ceramics
journal, January 2005

Takenaka, Tadashi; Nagata, Hajime
Journal of the European Ceramic Society, Vol. 25, Issue 12
DOI: 10.1016/j.jeurceramsoc.2005.03.125

Crystal growth and electric properties of lead-free NBT-BT at compositions near the morphotropic phase boundary
journal, March 2011

Zhang, Qinhui; Zhao, Xiangyong; Sun, Renbing
physica status solidi (a), Vol. 208, Issue 5
DOI: 10.1002/pssa.201000052

Soft phonon columns on the edge of the Brillouin zone in the relaxor ${PbMg}_{1 / 3} {Nb}_{2 / 3} O_{3}$
journal, June 2009

Swainson, I. P.; Stock, C.; Gehring, P. M.
Physical Review B, Vol. 79, Issue 22
DOI: 10.1103/PhysRevB.79.224301

Lead-free and lead-based $A B$ O $_{3}$ perovskite relaxors with mixed-valence $A$ -site and $B$ -site disorder: Comparative neutron scattering structural study of (Na $_{1 / 2}$ Bi $_{1 / 2}$ )TiO $_{3}$ and Pb(Mg $_{1 / 3}$ Nb $_{2 / 3}$ )O $_{3}$
journal, November 2013

Ge, Wenwei; Devreugd, Christopher P.; Phelan, D.
Physical Review B, Vol. 88, Issue 17
DOI: 10.1103/PhysRevB.88.174115

HYSPEC: A crystal time-of-flight hybrid spectrometer for the spallation neutron source with polarization capabilities
journal, November 2006

Shapiro, S. M.; Zaliznyak, I. A.; Passell, L.
Physica B: Condensed Matter, Vol. 385-386
DOI: 10.1016/j.physb.2006.05.380

Polarization rotation mechanism for ultrahigh electromechanical response in single-crystal piezoelectrics
journal, January 2000

Fu, Huaxiang; Cohen, Ronald E.
Nature, Vol. 403, Issue 6767
DOI: 10.1038/35002022

Neutron diffuse scattering of (1−x)(Na0.5Bi0.5)TiO3–xBaTiO3 relaxor ferroelectric single crystals
journal, September 2014

Zhang, Haiwu; Deng, Guochu; Studer, Andrew J.
Scripta Materialia, Vol. 86
DOI: 10.1016/j.scriptamat.2014.04.011

Damped soft phonons and diffuse scattering in $40 % Pb ({Mg}_{1 ∕ 3} {Nb}_{2 ∕ 3}) O_{3} − 60 % {PbTiO}_{3}$
journal, February 2006

Stock, C.; Ellis, D.; Swainson, I. P.
Physical Review B, Vol. 73, Issue 6
DOI: 10.1103/PhysRevB.73.064107

Inelastic neutron scattering study of lead-free relaxor ferroelectric (Na _0.5 Bi _0.5 ) _0.96 Ba _0.04 TiO ₃ single crystal
journal, September 2011

Ondrejkovic, P.; Hlinka, J.; Kempa, M.
Phase Transitions, Vol. 84, Issue 9-10
DOI: 10.1080/01411594.2011.558295

Anharmonicity of the lowest-frequency $A_{1}$ (TO) phonon in ${PbTiO}_{3}$
journal, October 1993

Foster, C. M.; Li, Z.; Grimsditch, M.
Physical Review B, Vol. 48, Issue 14
DOI: 10.1103/PhysRevB.48.10160

Neutron Diffuse Scattering in Lead-Based Relaxor Ferroelectrics and its Relationship to the Ultra-High Piezoelectricity
journal, April 2012

Gehring, Peter M.
Journal of Advanced Dielectrics, Vol. 02, Issue 02
DOI: 10.1142/S2010135X12410056

Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals
journal, August 1997

Park, Seung-Eek; Shrout, Thomas R.
Journal of Applied Physics, Vol. 82, Issue 4
DOI: 10.1063/1.365983

Domain boundary-dominated systems: adaptive structures and functional twin boundaries
journal, July 2014

Viehland, Dwight D.; Salje, Ekhard K. H.
Advances in Physics, Vol. 63, Issue 4
DOI: 10.1080/00018732.2014.974304

Effect of Mn substituents on the domain and local structures of Na1/2Bi1/2TiO3–BaTiO3 single crystals near a morphotropic phase boundary
journal, March 2011

Yao, Jianjun; Yang, Yaodong; Monsegue, Niven
Applied Physics Letters, Vol. 98, Issue 13
DOI: 10.1063/1.3573801

Lattice Dynamics and Phase Transitions of Strontium Titanate
journal, May 1964

Cowley, R. A.
Physical Review, Vol. 134, Issue 4A
DOI: 10.1103/PhysRev.134.A981

The classification of tilted octahedra in perovskites
journal, November 1972

Glazer, A. M.
Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, Vol. 28, Issue 11
DOI: 10.1107/S0567740872007976

Neutron elastic diffuse scattering study of $Pb ({Mg}_{1 / 3} {Nb}_{2 / 3}) O_{3}$
journal, February 2004

Xu, Guangyong; Shirane, G.; Copley, J. R. D.
Physical Review B, Vol. 69, Issue 6
DOI: 10.1103/PhysRevB.69.064112

Evolution of structure in Na _0.5 Bi _0.5 TiO ₃ single crystals with BaTiO ₃
journal, October 2014

Ge, Wenwei; Luo, Chengtao; Zhang, Qinhui
Applied Physics Letters, Vol. 105, Issue 16
DOI: 10.1063/1.4900547

Role of coexisting tetragonal regions in the rhombohedral phase of Na _0.5 Bi _0.5 TiO ₃ -xat.%BaTiO ₃ crystals on enhanced piezoelectric properties on approaching the morphotropic phase boundary
journal, January 2012

Yao, Jianjun; Monsegue, Niven; Murayama, Mitsuhiro
Applied Physics Letters, Vol. 100, Issue 1
DOI: 10.1063/1.3673832

Progress in engineering high strain lead-free piezoelectric ceramics
journal, February 2010

Leontsev, Serhiy O.; Eitel, Richard E.
Science and Technology of Advanced Materials, Vol. 11, Issue 4
DOI: 10.1088/1468-6996/11/4/044302

Direct evidence of correlations between relaxor behavior and polar nano-regions in relaxor ferroelectrics: A case study of lead-free piezoelectrics Na _0.5 Bi _0.5 TiO ₃ - x %BaTiO ₃
journal, December 2013

Ge, Wenwei; Luo, Chengtao; Devreugd, Christopher P.
Applied Physics Letters, Vol. 103, Issue 24
DOI: 10.1063/1.4846655

High-throughput electronic band structure calculations: Challenges and tools
journal, August 2010

Setyawan, Wahyu; Curtarolo, Stefano
Computational Materials Science, Vol. 49, Issue 2
DOI: 10.1016/j.commatsci.2010.05.010

Superlattice in single crystal barium-doped sodium bismuth titanate
journal, February 2000

Soukhojak, A. N.; Wang, H.; Farrey, G. W.
Journal of Physics and Chemistry of Solids, Vol. 61, Issue 2
DOI: 10.1016/S0022-3697(99)00297-8

Soft Mode Dynamics above and below the Burns Temperature in the Relaxor $Pb ({Mg}_{1 / 3} {Nb}_{2 / 3}) O_{3}$
journal, December 2001

Gehring, P. M.; Wakimoto, S.; Ye, Z. -G.
Physical Review Letters, Vol. 87, Issue 27
DOI: 10.1103/PhysRevLett.87.277601

The phase transition sequence and the location of the morphotropic phase boundary region in (1 x)[Pb (Mg _1/3 Nb _2/3 )O ₃ ] xPbTiO ₃ single crystal
journal, January 2003

Guo, Yiping; Luo, Haosu; Ling, Di
Journal of Physics: Condensed Matter, Vol. 15, Issue 2
DOI: 10.1088/0953-8984/15/2/110

Relaxorferroelectrics: An overview
journal, January 1994

Cross, L. Eric
Ferroelectrics, Vol. 151, Issue 1
DOI: 10.1080/00150199408244755

Evolution of domain structures in Na $_{1 / 2}$ Bi $_{1 / 2}$ TiO $_{3}$ single crystals with BaTiO $_{3}$
journal, February 2011

Yao, Jianjun; Yan, Li; Ge, Wenwei
Physical Review B, Vol. 83, Issue 5
DOI: 10.1103/PhysRevB.83.054107

Ultrahigh electromechanical response in (1− x )(Na _0.5 Bi _0.5 )TiO ₃ - x BaTiO ₃ single-crystals via polarization extension
journal, May 2012

Ge, Wenwei; Luo, Chengtao; Zhang, Qinhui
Journal of Applied Physics, Vol. 111, Issue 9
DOI: 10.1063/1.4709619

Crystal Structural Analyses of Ferrielectric Tetragonal (Bi _1/2 Na _1/2 )TiO ₃ –7%BaTiO ₃ Powders and Single Crystals
journal, September 2013

Kitanaka, Yuuki; Ogino, Motohiro; Hirano, Kiyotaka
Japanese Journal of Applied Physics, Vol. 52, Issue 9S1
DOI: 10.7567/JJAP.52.09KD01

Piezoelectricity and rotostriction through polar and non-polar coupled instabilities in bismuth-based piezoceramics
journal, July 2016

Acosta, Matias; Schmitt, Ljubomira A.; Cazorla, Claudio
Scientific Reports, Vol. 6, Issue 1
DOI: 10.1038/srep28742

Dynamical mechanism of phase transitions in $A$ -site ferroelectric relaxor $({Na}_{1 / 2} {Bi}_{1 / 2}) {TiO}_{3}$
journal, October 2014

Deng, Guochu; Danilkin, Sergey; Zhang, Haiwu
Physical Review B, Vol. 90, Issue 13
DOI: 10.1103/PhysRevB.90.134104

Simultaneous softening of acoustic and optical modes in cubic PbTiO $_{3}$
journal, October 2012

Tomeno, Izumi; Fernandez-Baca, Jaime A.; Marty, Karol J.
Physical Review B, Vol. 86, Issue 13
DOI: 10.1103/PhysRevB.86.134306

Creation and Destruction of Morphotropic Phase Boundaries through Electrical Poling: A Case Study of Lead-Free $({Bi}_{1 / 2} {Na}_{1 / 2}) {TiO}_{3} − {BaTiO}_{3}$ Piezoelectrics
journal, September 2012

Ma, Cheng; Guo, Hanzheng; Beckman, Scott P.
Physical Review Letters, Vol. 109, Issue 10
DOI: 10.1103/PhysRevLett.109.107602

Piezoelectricity and rotostriction through polar and non-polar coupled instabilities in bismuth-based piezoceramics
text, January 2016

Acosta, Matias; Schmitt, Ljubomira A.; Cazorla, Claudio
Karlsruhe
DOI: 10.5445/ir/1000059338

Soft Mode Dynamics above and below the Burns Temperature in the Relaxor Pb(Mg1/3Nb2/3)O3
text, January 2001

Gehring, P. M.; Shirane, G.; Wakimoto, S.
The American Physical Society
DOI: 10.17877/de290r-12424

High-throughput electronic band structure calculations: challenges and tools
text, January 2010

Setyawan, Wahyu; Curtarolo, Stefano
arXiv
DOI: 10.48550/arxiv.1004.2974

Soft Mode Dynamics Above and Below the Burns Temperature in the Relaxor Pb(Mg_1/3Nb_2/3)O_3
text, January 2001

Gehring, P. M.; Wakimoto, S.; Ye, Z. -G.
arXiv
DOI: 10.48550/arxiv.cond-mat/0108170

Works referencing / citing this record:

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journal, November 2019

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Advanced Electronic Materials, Vol. 6, Issue 1
DOI: 10.1002/aelm.201900949

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journal, November 2019

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Journal of Applied Physics, Vol. 126, Issue 17
DOI: 10.1063/1.5123748

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DOI: 10.1103/physrevb.100.134111

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journal, October 2019

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DOI: 10.1111/jace.16908

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journal, January 2018

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DOI: 10.3390/cryst8020049

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Title: Neutron and x-ray scattering study of phonon dispersion and diffuse scattering in ( Na , Bi ) Ti O 3 - x BaTi O 3 single crystals near the morphotropic phase boundary

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Inelastic neutron scattering study of lead-free relaxor ferroelectric (Na 0.5 Bi 0.5 ) 0.96 Ba 0.04 TiO 3 single crystal journal, September 2011

Anharmonicity of the lowest-frequency A 1 (TO) phonon in PbTiO 3 journal, October 1993

Neutron Diffuse Scattering in Lead-Based Relaxor Ferroelectrics and its Relationship to the Ultra-High Piezoelectricity journal, April 2012

Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals journal, August 1997

Domain boundary-dominated systems: adaptive structures and functional twin boundaries journal, July 2014

Effect of Mn substituents on the domain and local structures of Na1/2Bi1/2TiO3–BaTiO3 single crystals near a morphotropic phase boundary journal, March 2011

Lattice Dynamics and Phase Transitions of Strontium Titanate journal, May 1964

The classification of tilted octahedra in perovskites journal, November 1972

Neutron elastic diffuse scattering study of Pb ( Mg 1 / 3 Nb 2 / 3 ) O 3 journal, February 2004

Evolution of structure in Na 0.5 Bi 0.5 TiO 3 single crystals with BaTiO 3 journal, October 2014

Role of coexisting tetragonal regions in the rhombohedral phase of Na 0.5 Bi 0.5 TiO 3 -xat.%BaTiO 3 crystals on enhanced piezoelectric properties on approaching the morphotropic phase boundary journal, January 2012

Progress in engineering high strain lead-free piezoelectric ceramics journal, February 2010

Direct evidence of correlations between relaxor behavior and polar nano-regions in relaxor ferroelectrics: A case study of lead-free piezoelectrics Na 0.5 Bi 0.5 TiO 3 - x %BaTiO 3 journal, December 2013

High-throughput electronic band structure calculations: Challenges and tools journal, August 2010

Superlattice in single crystal barium-doped sodium bismuth titanate journal, February 2000

Soft Mode Dynamics above and below the Burns Temperature in the Relaxor Pb ( Mg 1 / 3 Nb 2 / 3 ) O 3 journal, December 2001

The phase transition sequence and the location of the morphotropic phase boundary region in (1 x)[Pb (Mg 1/3 Nb 2/3 )O 3 ] xPbTiO 3 single crystal journal, January 2003

Relaxorferroelectrics: An overview journal, January 1994

Evolution of domain structures in Na 1 / 2 Bi 1 / 2 TiO 3 single crystals with BaTiO 3 journal, February 2011

Ultrahigh electromechanical response in (1− x )(Na 0.5 Bi 0.5 )TiO 3 - x BaTiO 3 single-crystals via polarization extension journal, May 2012

Crystal Structural Analyses of Ferrielectric Tetragonal (Bi 1/2 Na 1/2 )TiO 3 –7%BaTiO 3 Powders and Single Crystals journal, September 2013

Piezoelectricity and rotostriction through polar and non-polar coupled instabilities in bismuth-based piezoceramics journal, July 2016

Dynamical mechanism of phase transitions in A -site ferroelectric relaxor ( Na 1 / 2 Bi 1 / 2 ) TiO 3 journal, October 2014

Simultaneous softening of acoustic and optical modes in cubic PbTiO 3 journal, October 2012

Creation and Destruction of Morphotropic Phase Boundaries through Electrical Poling: A Case Study of Lead-Free ( Bi 1 / 2 Na 1 / 2 ) TiO 3 − BaTiO 3 Piezoelectrics journal, September 2012

Piezoelectricity and rotostriction through polar and non-polar coupled instabilities in bismuth-based piezoceramics text, January 2016

Soft Mode Dynamics above and below the Burns Temperature in the Relaxor Pb(Mg1/3Nb2/3)O3 text, January 2001

High-throughput electronic band structure calculations: challenges and tools text, January 2010

Soft Mode Dynamics Above and Below the Burns Temperature in the Relaxor Pb(Mg_1/3Nb_2/3)O_3 text, January 2001

Large Piezoelectricity in Ternary Lead‐Free Single Crystals journal, November 2019

Anomalous behaviors of elastic constants of lead-free piezoelectric (Na 1/2 Bi 1/2 )TiO 3 -5%BaTiO 3 single crystals studied by Brillouin spectroscopy journal, November 2019

Increasing intervention of nonferroelectric distortion and weakening of ferroelectricity at the morphotropic phase boundary in N a 0.5 B i 0.5 Ti O 3 − BaTi O 3 journal, October 2019

Domain‐scale imaging to dispel the clouds over the thermal depolarization of Bi 0.5 Na 0.5 TiO 3 ‐based relaxor ferroelectrics journal, October 2019

Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction journal, January 2018

Title: Neutron and x-ray scattering study of phonon dispersion and diffuse scattering in $(Na, Bi) Ti O_{3} - x BaTi O_{3}$ single crystals near the morphotropic phase boundary

Dynamical, scattering and dielectric properties of ferroelectric crystals
journal, March 1969

Neutron and x-ray diffraction study of cubic [111] field-cooled $Pb ({Mg}_{1 ∕ 3} {Nb}_{2 ∕ 3}) O_{3}$
journal, August 2007

Hierarchical domain structure of lead-free piezoelectric (Na _1/2 Bi _1/2 )TiO ₃ -(K _1/2 Bi _1/2 )TiO ₃ single crystals
journal, May 2016

Neutron diffuse scattering from polar nanoregions in the relaxor $Pb ({Mg}_{1 / 3} {Nb}_{2 / 3}) O_{3}$
journal, February 2002

Current status and prospects of lead-free piezoelectric ceramics
journal, January 2005

Crystal growth and electric properties of lead-free NBT-BT at compositions near the morphotropic phase boundary
journal, March 2011

Soft phonon columns on the edge of the Brillouin zone in the relaxor ${PbMg}_{1 / 3} {Nb}_{2 / 3} O_{3}$
journal, June 2009

Lead-free and lead-based $A B$ O $_{3}$ perovskite relaxors with mixed-valence $A$ -site and $B$ -site disorder: Comparative neutron scattering structural study of (Na $_{1 / 2}$ Bi $_{1 / 2}$ )TiO $_{3}$ and Pb(Mg $_{1 / 3}$ Nb $_{2 / 3}$ )O $_{3}$
journal, November 2013

HYSPEC: A crystal time-of-flight hybrid spectrometer for the spallation neutron source with polarization capabilities
journal, November 2006

Polarization rotation mechanism for ultrahigh electromechanical response in single-crystal piezoelectrics
journal, January 2000

Neutron diffuse scattering of (1−x)(Na0.5Bi0.5)TiO3–xBaTiO3 relaxor ferroelectric single crystals
journal, September 2014

Damped soft phonons and diffuse scattering in $40 % Pb ({Mg}_{1 ∕ 3} {Nb}_{2 ∕ 3}) O_{3} − 60 % {PbTiO}_{3}$
journal, February 2006

Inelastic neutron scattering study of lead-free relaxor ferroelectric (Na _0.5 Bi _0.5 ) _0.96 Ba _0.04 TiO ₃ single crystal
journal, September 2011

Anharmonicity of the lowest-frequency $A_{1}$ (TO) phonon in ${PbTiO}_{3}$
journal, October 1993

Neutron Diffuse Scattering in Lead-Based Relaxor Ferroelectrics and its Relationship to the Ultra-High Piezoelectricity
journal, April 2012

Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals
journal, August 1997

Domain boundary-dominated systems: adaptive structures and functional twin boundaries
journal, July 2014

Effect of Mn substituents on the domain and local structures of Na1/2Bi1/2TiO3–BaTiO3 single crystals near a morphotropic phase boundary
journal, March 2011

Lattice Dynamics and Phase Transitions of Strontium Titanate
journal, May 1964

The classification of tilted octahedra in perovskites
journal, November 1972

Neutron elastic diffuse scattering study of $Pb ({Mg}_{1 / 3} {Nb}_{2 / 3}) O_{3}$
journal, February 2004

Evolution of structure in Na _0.5 Bi _0.5 TiO ₃ single crystals with BaTiO ₃
journal, October 2014

Role of coexisting tetragonal regions in the rhombohedral phase of Na _0.5 Bi _0.5 TiO ₃ -xat.%BaTiO ₃ crystals on enhanced piezoelectric properties on approaching the morphotropic phase boundary
journal, January 2012

Progress in engineering high strain lead-free piezoelectric ceramics
journal, February 2010

Direct evidence of correlations between relaxor behavior and polar nano-regions in relaxor ferroelectrics: A case study of lead-free piezoelectrics Na _0.5 Bi _0.5 TiO ₃ - x %BaTiO ₃
journal, December 2013

High-throughput electronic band structure calculations: Challenges and tools
journal, August 2010

Superlattice in single crystal barium-doped sodium bismuth titanate
journal, February 2000

Soft Mode Dynamics above and below the Burns Temperature in the Relaxor $Pb ({Mg}_{1 / 3} {Nb}_{2 / 3}) O_{3}$
journal, December 2001

The phase transition sequence and the location of the morphotropic phase boundary region in (1 x)[Pb (Mg _1/3 Nb _2/3 )O ₃ ] xPbTiO ₃ single crystal
journal, January 2003

Relaxorferroelectrics: An overview
journal, January 1994

Evolution of domain structures in Na $_{1 / 2}$ Bi $_{1 / 2}$ TiO $_{3}$ single crystals with BaTiO $_{3}$
journal, February 2011

Ultrahigh electromechanical response in (1− x )(Na _0.5 Bi _0.5 )TiO ₃ - x BaTiO ₃ single-crystals via polarization extension
journal, May 2012

Crystal Structural Analyses of Ferrielectric Tetragonal (Bi _1/2 Na _1/2 )TiO ₃ –7%BaTiO ₃ Powders and Single Crystals
journal, September 2013

Piezoelectricity and rotostriction through polar and non-polar coupled instabilities in bismuth-based piezoceramics
journal, July 2016

Dynamical mechanism of phase transitions in $A$ -site ferroelectric relaxor $({Na}_{1 / 2} {Bi}_{1 / 2}) {TiO}_{3}$
journal, October 2014

Simultaneous softening of acoustic and optical modes in cubic PbTiO $_{3}$
journal, October 2012

Creation and Destruction of Morphotropic Phase Boundaries through Electrical Poling: A Case Study of Lead-Free $({Bi}_{1 / 2} {Na}_{1 / 2}) {TiO}_{3} − {BaTiO}_{3}$ Piezoelectrics
journal, September 2012

Piezoelectricity and rotostriction through polar and non-polar coupled instabilities in bismuth-based piezoceramics
text, January 2016

Soft Mode Dynamics above and below the Burns Temperature in the Relaxor Pb(Mg1/3Nb2/3)O3
text, January 2001

High-throughput electronic band structure calculations: challenges and tools
text, January 2010

Soft Mode Dynamics Above and Below the Burns Temperature in the Relaxor Pb(Mg_1/3Nb_2/3)O_3
text, January 2001

Large Piezoelectricity in Ternary Lead‐Free Single Crystals
journal, November 2019

Anomalous behaviors of elastic constants of lead-free piezoelectric (Na _1/2 Bi _1/2 )TiO ₃ -5%BaTiO ₃ single crystals studied by Brillouin spectroscopy
journal, November 2019

Increasing intervention of nonferroelectric distortion and weakening of ferroelectricity at the morphotropic phase boundary in $N a_{0.5} B i_{0.5} Ti O_{3} - BaTi O_{3}$
journal, October 2019

Domain‐scale imaging to dispel the clouds over the thermal depolarization of Bi _0.5 Na _0.5 TiO ₃ ‐based relaxor ferroelectrics
journal, October 2019

Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction
journal, January 2018