In-situ neutron diffraction study of Pb(In 1/2Nb 1/2)O 3-Pb(Mg 1/3Nb 2/3)O 3-PbTiO 3 single crystals under uniaxial mechanical stress

Qian Li; Yun Liu; Vladimir Luzin; Andrew J. Studer; Yuhui Wan; Zhengrong Li; Lasse Norn; Ray L. Withers; Zhuo Xu

doi:10.1063/1.4706563

In-situ neutron diffraction study of Pb(In _1/2Nb _1/2)O ₃-Pb(Mg _1/3Nb _2/3)O ₃-PbTiO ₃ single crystals under uniaxial mechanical stress

Qian Li, Yun Liu^*, Vladimir Luzin, Andrew J. Studer, Yuhui Wan, Zhengrong Li, Lasse Norn, Ray L. Withers, Zhuo Xu

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

In this paper, we report the phase transition behavior of ternary relaxor ferroelectric single crystals of 0.25Pb(In _1/2Nb _1/2)O ₃-0.44Pb(Mg _1/3Nb _2/3)O ₃-0. 31PbTiO ₃ subject to a uniaxial mechanical stress up to 400 MPa. The resultant in situ neutron diffraction data are interpreted in terms of the polarization rotation theory and provide direct structural evidence for the stress-induced polarization rotation pathway deduced from studies of macroscopic physical properties under stress. It is suggested that an intermediate, metastable orthorhombic phase is induced above a critical pressure of ∼75 MPa. This critical stress level appears to be unaffected by sample poling although the ground states (at zero stress) for the poled and unpoled crystals are different. The critical stress level, however, does decrease with increasing temperature. The elastic behavior of the intermediate phases is also studied based on a calculation of the associated lattice strains.

Original language	English
Article number	084110
Journal	Journal of Applied Physics
Volume	111
Issue number	8
DOIs	https://doi.org/10.1063/1.4706563
Publication status	Published - 15 Apr 2012

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@article{76a6172fe39b48bfa433e4d7ff600bc6,

title = "In-situ neutron diffraction study of Pb(In 1/2Nb 1/2)O 3-Pb(Mg 1/3Nb 2/3)O 3-PbTiO 3 single crystals under uniaxial mechanical stress",

abstract = "In this paper, we report the phase transition behavior of ternary relaxor ferroelectric single crystals of 0.25Pb(In 1/2Nb 1/2)O 3-0.44Pb(Mg 1/3Nb 2/3)O 3-0. 31PbTiO 3 subject to a uniaxial mechanical stress up to 400 MPa. The resultant in situ neutron diffraction data are interpreted in terms of the polarization rotation theory and provide direct structural evidence for the stress-induced polarization rotation pathway deduced from studies of macroscopic physical properties under stress. It is suggested that an intermediate, metastable orthorhombic phase is induced above a critical pressure of ∼75 MPa. This critical stress level appears to be unaffected by sample poling although the ground states (at zero stress) for the poled and unpoled crystals are different. The critical stress level, however, does decrease with increasing temperature. The elastic behavior of the intermediate phases is also studied based on a calculation of the associated lattice strains.",

author = "Qian Li and Yun Liu and Vladimir Luzin and Studer, {Andrew J.} and Yuhui Wan and Zhengrong Li and Lasse Norn and Withers, {Ray L.} and Zhuo Xu",

year = "2012",

month = apr,

day = "15",

doi = "10.1063/1.4706563",

language = "English",

volume = "111",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

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T1 - In-situ neutron diffraction study of Pb(In 1/2Nb 1/2)O 3-Pb(Mg 1/3Nb 2/3)O 3-PbTiO 3 single crystals under uniaxial mechanical stress

AU - Li, Qian

AU - Liu, Yun

AU - Luzin, Vladimir

AU - Studer, Andrew J.

AU - Wan, Yuhui

AU - Li, Zhengrong

AU - Norn, Lasse

AU - Withers, Ray L.

AU - Xu, Zhuo

PY - 2012/4/15

Y1 - 2012/4/15

N2 - In this paper, we report the phase transition behavior of ternary relaxor ferroelectric single crystals of 0.25Pb(In 1/2Nb 1/2)O 3-0.44Pb(Mg 1/3Nb 2/3)O 3-0. 31PbTiO 3 subject to a uniaxial mechanical stress up to 400 MPa. The resultant in situ neutron diffraction data are interpreted in terms of the polarization rotation theory and provide direct structural evidence for the stress-induced polarization rotation pathway deduced from studies of macroscopic physical properties under stress. It is suggested that an intermediate, metastable orthorhombic phase is induced above a critical pressure of ∼75 MPa. This critical stress level appears to be unaffected by sample poling although the ground states (at zero stress) for the poled and unpoled crystals are different. The critical stress level, however, does decrease with increasing temperature. The elastic behavior of the intermediate phases is also studied based on a calculation of the associated lattice strains.

AB - In this paper, we report the phase transition behavior of ternary relaxor ferroelectric single crystals of 0.25Pb(In 1/2Nb 1/2)O 3-0.44Pb(Mg 1/3Nb 2/3)O 3-0. 31PbTiO 3 subject to a uniaxial mechanical stress up to 400 MPa. The resultant in situ neutron diffraction data are interpreted in terms of the polarization rotation theory and provide direct structural evidence for the stress-induced polarization rotation pathway deduced from studies of macroscopic physical properties under stress. It is suggested that an intermediate, metastable orthorhombic phase is induced above a critical pressure of ∼75 MPa. This critical stress level appears to be unaffected by sample poling although the ground states (at zero stress) for the poled and unpoled crystals are different. The critical stress level, however, does decrease with increasing temperature. The elastic behavior of the intermediate phases is also studied based on a calculation of the associated lattice strains.

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U2 - 10.1063/1.4706563

DO - 10.1063/1.4706563

M3 - Article

SN - 0021-8979

VL - 111

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 8

M1 - 084110

ER -

In-situ neutron diffraction study of Pb(In _1/2Nb _1/2)O ₃-Pb(Mg _1/3Nb _2/3)O ₃-PbTiO ₃ single crystals under uniaxial mechanical stress

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