High-pressure Raman scattering and x-ray diffraction of the relaxor ferroelectric 0.96Pb(Zn1/3Nb2/3)O-3-0.04PbTiO(3)

M Ahart; RE Cohen; V. V. Struzhkin; E Gregoryanz; D Rytz; SA Prosandeev; HK Mao; RJ Hemley

doi:10.1103/PhysRevB.71.144102

High-pressure Raman scattering and x-ray diffraction of the relaxor ferroelectric 0.96Pb(Zn1/3Nb2/3)O-3-0.04PbTiO(3)

M Ahart^*, RE Cohen, V. V. Struzhkin, E Gregoryanz, D Rytz, SA Prosandeev, HK Mao, RJ Hemley

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract / Description of output

High-pressure Raman scattering and x-ray diffraction of lead zinc niobate-lead titanate (PZN-4%PT) solid solution were measured from ambient pressure to 13 GPa. All of the Raman peaks are broad due to the disorder of Zn2+ and Nb5+ on the B site of the perovskite structure. The pressure shifts of the Raman bands are reversible, and no pressure-induced soft phonon modes were found. X-ray diffraction as a function of pressure revealed diffuse scattering near the Bragg peaks, and gave a bulk modulus of 111 GPa assuming K'=4. Allowing K' to vary gave a large value K'=12 and K-0=90 GPa. Changes in both the Raman spectra and the diffuse scattering reflect suppression of the local distortions in the material on compression.

Original language	English
Article number	144102
Number of pages	7
Journal	Physical review B
Volume	71
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.71.144102
Publication status	Published - Apr 2005

Keywords / Materials (for Non-textual outputs)

0.955PB(ZN1/3NB2/3)O-3-0.045PBTIO(3) SINGLE-CRYSTALS
LEAD MAGNESIUM NIOBATE
PBMG1/3NB2/3O3
SPECTROSCOPY
STATES
PHASE
ORDER

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10.1103/PhysRevB.71.144102

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@article{278d14a4887e44888143f03c04d1423f,

title = "High-pressure Raman scattering and x-ray diffraction of the relaxor ferroelectric 0.96Pb(Zn1/3Nb2/3)O-3-0.04PbTiO(3)",

abstract = "High-pressure Raman scattering and x-ray diffraction of lead zinc niobate-lead titanate (PZN-4%PT) solid solution were measured from ambient pressure to 13 GPa. All of the Raman peaks are broad due to the disorder of Zn2+ and Nb5+ on the B site of the perovskite structure. The pressure shifts of the Raman bands are reversible, and no pressure-induced soft phonon modes were found. X-ray diffraction as a function of pressure revealed diffuse scattering near the Bragg peaks, and gave a bulk modulus of 111 GPa assuming K'=4. Allowing K' to vary gave a large value K'=12 and K-0=90 GPa. Changes in both the Raman spectra and the diffuse scattering reflect suppression of the local distortions in the material on compression.",

keywords = "0.955PB(ZN1/3NB2/3)O-3-0.045PBTIO(3) SINGLE-CRYSTALS, LEAD MAGNESIUM NIOBATE, PBMG1/3NB2/3O3, SPECTROSCOPY, STATES, PHASE, ORDER",

author = "M Ahart and RE Cohen and Struzhkin, {V. V.} and E Gregoryanz and D Rytz and SA Prosandeev and HK Mao and RJ Hemley",

year = "2005",

month = apr,

doi = "10.1103/PhysRevB.71.144102",

language = "English",

volume = "71",

journal = "Physical review B",

issn = "1098-0121",

publisher = "American Physical Society",

number = "14",

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TY - JOUR

T1 - High-pressure Raman scattering and x-ray diffraction of the relaxor ferroelectric 0.96Pb(Zn1/3Nb2/3)O-3-0.04PbTiO(3)

AU - Ahart, M

AU - Cohen, RE

AU - Struzhkin, V. V.

AU - Gregoryanz, E

AU - Rytz, D

AU - Prosandeev, SA

AU - Mao, HK

AU - Hemley, RJ

PY - 2005/4

Y1 - 2005/4

N2 - High-pressure Raman scattering and x-ray diffraction of lead zinc niobate-lead titanate (PZN-4%PT) solid solution were measured from ambient pressure to 13 GPa. All of the Raman peaks are broad due to the disorder of Zn2+ and Nb5+ on the B site of the perovskite structure. The pressure shifts of the Raman bands are reversible, and no pressure-induced soft phonon modes were found. X-ray diffraction as a function of pressure revealed diffuse scattering near the Bragg peaks, and gave a bulk modulus of 111 GPa assuming K'=4. Allowing K' to vary gave a large value K'=12 and K-0=90 GPa. Changes in both the Raman spectra and the diffuse scattering reflect suppression of the local distortions in the material on compression.

AB - High-pressure Raman scattering and x-ray diffraction of lead zinc niobate-lead titanate (PZN-4%PT) solid solution were measured from ambient pressure to 13 GPa. All of the Raman peaks are broad due to the disorder of Zn2+ and Nb5+ on the B site of the perovskite structure. The pressure shifts of the Raman bands are reversible, and no pressure-induced soft phonon modes were found. X-ray diffraction as a function of pressure revealed diffuse scattering near the Bragg peaks, and gave a bulk modulus of 111 GPa assuming K'=4. Allowing K' to vary gave a large value K'=12 and K-0=90 GPa. Changes in both the Raman spectra and the diffuse scattering reflect suppression of the local distortions in the material on compression.

KW - 0.955PB(ZN1/3NB2/3)O-3-0.045PBTIO(3) SINGLE-CRYSTALS

KW - LEAD MAGNESIUM NIOBATE

KW - PBMG1/3NB2/3O3

KW - SPECTROSCOPY

KW - STATES

KW - PHASE

KW - ORDER

U2 - 10.1103/PhysRevB.71.144102

DO - 10.1103/PhysRevB.71.144102

M3 - Article

SN - 1098-0121

VL - 71

JO - Physical review B

JF - Physical review B

IS - 14

M1 - 144102

ER -

High-pressure Raman scattering and x-ray diffraction of the relaxor ferroelectric 0.96Pb(Zn1/3Nb2/3)O-3-0.04PbTiO(3)

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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