Detection of the critical end point in PbSc0.5Ta0.36Nb0.14O3 relaxor ferroelectrics crystals via acoustic emission

E. Dul'kin; B. Mihailova; M. Gospodinov; M. Roth

doi:https://doi.org/10.1088/2053-1591/1/3/035026

Detection of the critical end point in PbSc_0.5Ta_0.36Nb_0.14O₃ relaxor ferroelectrics crystals via acoustic emission

E. Dul'kin, B. Mihailova, M. Gospodinov, M. Roth

Department of Applied Physics

The Hebrew University of Jerusalem

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

Abstract

PbSc_0.5Ta_0.36Nb_0.14O₃ relaxor-ferroelectric crystals were studied by the means of dielectric and acoustic emission (AE) methods in the temperature range of 180-300 K. In zero dc electric field (E) no AE was detected at the smeared dielectric maximum Tm≈260K characteristic for canonical relaxor ferroelectrics. Under the E a phase transition appears at T_C = 217K for E∼1 kVcm^-1. The T_C(E) dependence is linear with an anomaly point at E∼1.3 kV cm^-1, at which dT_C/dE abruptly changes. At this E value the AE rate exhibits a maximum. The anomalous E point is assigned to be the critical end point for this solid solution.

Original language	English
Article number	035026
Journal	Materials Research Express
Volume	1
Issue number	3
DOIs	https://doi.org/10.1088/2053-1591/1/3/035026
State	Published - Sep 2014

Keywords

Acoustic emission
Critical end point
Relaxor ferroelectrics

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Polymers and Plastics
Metals and Alloys

Access to Document

https://doi.org/10.1088/2053-1591/1/3/035026

Cite this

@article{d7552ce11c764fcdbea568b411442a8e,

title = "Detection of the critical end point in PbSc0.5Ta0.36Nb0.14O3 relaxor ferroelectrics crystals via acoustic emission",

abstract = "PbSc0.5Ta0.36Nb0.14O3 relaxor-ferroelectric crystals were studied by the means of dielectric and acoustic emission (AE) methods in the temperature range of 180-300 K. In zero dc electric field (E) no AE was detected at the smeared dielectric maximum Tm≈260K characteristic for canonical relaxor ferroelectrics. Under the E a phase transition appears at TC = 217K for E∼1 kVcm-1. The TC(E) dependence is linear with an anomaly point at E∼1.3 kV cm-1, at which dTC/dE abruptly changes. At this E value the AE rate exhibits a maximum. The anomalous E point is assigned to be the critical end point for this solid solution.",

keywords = "Acoustic emission, Critical end point, Relaxor ferroelectrics",

author = "E. Dul'kin and B. Mihailova and M. Gospodinov and M. Roth",

note = "Publisher Copyright: {\textcopyright} 2014 IOP Publishing Ltd.",

year = "2014",

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doi = "https://doi.org/10.1088/2053-1591/1/3/035026",

language = "الإنجليزيّة",

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journal = "Materials Research Express",

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TY - JOUR

T1 - Detection of the critical end point in PbSc0.5Ta0.36Nb0.14O3 relaxor ferroelectrics crystals via acoustic emission

AU - Dul'kin, E.

AU - Mihailova, B.

AU - Gospodinov, M.

AU - Roth, M.

PY - 2014/9

Y1 - 2014/9

N2 - PbSc0.5Ta0.36Nb0.14O3 relaxor-ferroelectric crystals were studied by the means of dielectric and acoustic emission (AE) methods in the temperature range of 180-300 K. In zero dc electric field (E) no AE was detected at the smeared dielectric maximum Tm≈260K characteristic for canonical relaxor ferroelectrics. Under the E a phase transition appears at TC = 217K for E∼1 kVcm-1. The TC(E) dependence is linear with an anomaly point at E∼1.3 kV cm-1, at which dTC/dE abruptly changes. At this E value the AE rate exhibits a maximum. The anomalous E point is assigned to be the critical end point for this solid solution.

AB - PbSc0.5Ta0.36Nb0.14O3 relaxor-ferroelectric crystals were studied by the means of dielectric and acoustic emission (AE) methods in the temperature range of 180-300 K. In zero dc electric field (E) no AE was detected at the smeared dielectric maximum Tm≈260K characteristic for canonical relaxor ferroelectrics. Under the E a phase transition appears at TC = 217K for E∼1 kVcm-1. The TC(E) dependence is linear with an anomaly point at E∼1.3 kV cm-1, at which dTC/dE abruptly changes. At this E value the AE rate exhibits a maximum. The anomalous E point is assigned to be the critical end point for this solid solution.

KW - Acoustic emission

KW - Critical end point

KW - Relaxor ferroelectrics

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U2 - https://doi.org/10.1088/2053-1591/1/3/035026

DO - https://doi.org/10.1088/2053-1591/1/3/035026

M3 - مقالة

SN - 2053-1591

VL - 1

JO - Materials Research Express

JF - Materials Research Express

IS - 3

M1 - 035026

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