Phase transition at a nanometer scale detected by acoustic emission within the cubic phase Pb(Zn1/3Nb2/3)O3-xPbTiO3 relaxor ferroelectrics

Michael Roth; Evgeny Mojaev; Evgeniy Dul'kin; Pascale Gemeiner; Brahim Dkhil

doi:10.1103/PhysRevLett.98.265701

Phase transition at a nanometer scale detected by acoustic emission within the cubic phase Pb(Zn1/3Nb2/3)O3-xPbTiO3 relaxor ferroelectrics

Michael Roth, Evgeny Mojaev, Evgeniy Dul'kin^*, Pascale Gemeiner, Brahim Dkhil

^*Corresponding author for this work

Department of Applied Physics

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

103 Scopus citations

Abstract

Pb(Zn1/3Nb2/3)O3-xPbTiO3 (x=4.5%-12%) relaxor ferroelectric crystals have been studied by means of acoustic emission (AE) in the 400-540K temperature range. An anomalous AE activity independent of the ground state relaxor/morphotropic/ferroelectric crossover has been revealed at around 500K, and it is associated with the "waterfall" feature related to the existence of polar nanoregions (PNRs). The 500KAE anomaly is attributed to local martensitelike cubic-to-tetragonal ferroelectric transitions within the PNRs imbedded in a nonpolar (cubic) matrix.

Original language	English
Article number	265701
Journal	Physical Review Letters
Volume	98
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.98.265701
State	Published - 27 Jun 2007

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title = "Phase transition at a nanometer scale detected by acoustic emission within the cubic phase Pb(Zn1/3Nb2/3)O3-xPbTiO3 relaxor ferroelectrics",

abstract = "Pb(Zn1/3Nb2/3)O3-xPbTiO3 (x=4.5%-12%) relaxor ferroelectric crystals have been studied by means of acoustic emission (AE) in the 400-540K temperature range. An anomalous AE activity independent of the ground state relaxor/morphotropic/ferroelectric crossover has been revealed at around 500K, and it is associated with the {"}waterfall{"} feature related to the existence of polar nanoregions (PNRs). The 500KAE anomaly is attributed to local martensitelike cubic-to-tetragonal ferroelectric transitions within the PNRs imbedded in a nonpolar (cubic) matrix.",

author = "Michael Roth and Evgeny Mojaev and Evgeniy Dul'kin and Pascale Gemeiner and Brahim Dkhil",

year = "2007",

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doi = "10.1103/PhysRevLett.98.265701",

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T1 - Phase transition at a nanometer scale detected by acoustic emission within the cubic phase Pb(Zn1/3Nb2/3)O3-xPbTiO3 relaxor ferroelectrics

AU - Roth, Michael

AU - Mojaev, Evgeny

AU - Dul'kin, Evgeniy

AU - Gemeiner, Pascale

AU - Dkhil, Brahim

PY - 2007/6/27

Y1 - 2007/6/27

N2 - Pb(Zn1/3Nb2/3)O3-xPbTiO3 (x=4.5%-12%) relaxor ferroelectric crystals have been studied by means of acoustic emission (AE) in the 400-540K temperature range. An anomalous AE activity independent of the ground state relaxor/morphotropic/ferroelectric crossover has been revealed at around 500K, and it is associated with the "waterfall" feature related to the existence of polar nanoregions (PNRs). The 500KAE anomaly is attributed to local martensitelike cubic-to-tetragonal ferroelectric transitions within the PNRs imbedded in a nonpolar (cubic) matrix.

AB - Pb(Zn1/3Nb2/3)O3-xPbTiO3 (x=4.5%-12%) relaxor ferroelectric crystals have been studied by means of acoustic emission (AE) in the 400-540K temperature range. An anomalous AE activity independent of the ground state relaxor/morphotropic/ferroelectric crossover has been revealed at around 500K, and it is associated with the "waterfall" feature related to the existence of polar nanoregions (PNRs). The 500KAE anomaly is attributed to local martensitelike cubic-to-tetragonal ferroelectric transitions within the PNRs imbedded in a nonpolar (cubic) matrix.

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Phase transition at a nanometer scale detected by acoustic emission within the cubic phase Pb(Zn1/3Nb2/3)O3-xPbTiO3 relaxor ferroelectrics

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