Thermal history induced variable relaxor behavior in the high TC ternary ferroelectric 0.6Bi(Mg1/2Ti1/2)O 3-0.05Bi(Zn1/2Ti1/2)O3-0. 35PbTiO3

Akansha Dwivedi; Clive A. Randall; George A. Rossetti

doi:10.1016/j.matlet.2011.06.072

Thermal history induced variable relaxor behavior in the high T_C ternary ferroelectric 0.6Bi(Mg_1/2Ti_1/2)O ₃-0.05Bi(Zn_1/2Ti_1/2)O₃-0. 35PbTiO₃

Akansha Dwivedi, Clive A. Randall, George A. Rossetti

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

4 Scopus citations

Abstract

Studies carried out on a perovskite-structured rhombohedral 0.6Bi(Mg _1/2Ti_1/2)O₃-0.05Bi(Zn_1/2Ti _1/2)O₃-0.35PbTiO₃ (xBZT-yBMT-zPT) ceramic quenched from temperatures below 1000 °C show that the dielectric properties are dramatically altered by the thermal history. Samples quenched from temperatures 650 °C-900 °C show classical ferroelectric switching behavior that is not observed on either side of this temperature range. The quenched states lose their switchable ferroelectric properties when heated to temperatures as low as 400 °C. The results demonstrate for the first time that the dielectric and electromechanical response, as observed at room temperature, can be varied between normal to relaxor behavior by changing thermal quenching conditions.

Original language	English (US)
Pages (from-to)	3034-3036
Number of pages	3
Journal	Materials Letters
Volume	65
Issue number	19-20
DOIs	https://doi.org/10.1016/j.matlet.2011.06.072
State	Published - Oct 2011

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2011.06.072

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title = "Thermal history induced variable relaxor behavior in the high TC ternary ferroelectric 0.6Bi(Mg1/2Ti1/2)O 3-0.05Bi(Zn1/2Ti1/2)O3-0. 35PbTiO3",

abstract = "Studies carried out on a perovskite-structured rhombohedral 0.6Bi(Mg 1/2Ti1/2)O3-0.05Bi(Zn1/2Ti 1/2)O3-0.35PbTiO3 (xBZT-yBMT-zPT) ceramic quenched from temperatures below 1000 °C show that the dielectric properties are dramatically altered by the thermal history. Samples quenched from temperatures 650 °C-900 °C show classical ferroelectric switching behavior that is not observed on either side of this temperature range. The quenched states lose their switchable ferroelectric properties when heated to temperatures as low as 400 °C. The results demonstrate for the first time that the dielectric and electromechanical response, as observed at room temperature, can be varied between normal to relaxor behavior by changing thermal quenching conditions.",

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AU - Dwivedi, Akansha

AU - Randall, Clive A.

AU - Rossetti, George A.

PY - 2011/10

Y1 - 2011/10

N2 - Studies carried out on a perovskite-structured rhombohedral 0.6Bi(Mg 1/2Ti1/2)O3-0.05Bi(Zn1/2Ti 1/2)O3-0.35PbTiO3 (xBZT-yBMT-zPT) ceramic quenched from temperatures below 1000 °C show that the dielectric properties are dramatically altered by the thermal history. Samples quenched from temperatures 650 °C-900 °C show classical ferroelectric switching behavior that is not observed on either side of this temperature range. The quenched states lose their switchable ferroelectric properties when heated to temperatures as low as 400 °C. The results demonstrate for the first time that the dielectric and electromechanical response, as observed at room temperature, can be varied between normal to relaxor behavior by changing thermal quenching conditions.

AB - Studies carried out on a perovskite-structured rhombohedral 0.6Bi(Mg 1/2Ti1/2)O3-0.05Bi(Zn1/2Ti 1/2)O3-0.35PbTiO3 (xBZT-yBMT-zPT) ceramic quenched from temperatures below 1000 °C show that the dielectric properties are dramatically altered by the thermal history. Samples quenched from temperatures 650 °C-900 °C show classical ferroelectric switching behavior that is not observed on either side of this temperature range. The quenched states lose their switchable ferroelectric properties when heated to temperatures as low as 400 °C. The results demonstrate for the first time that the dielectric and electromechanical response, as observed at room temperature, can be varied between normal to relaxor behavior by changing thermal quenching conditions.

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Thermal history induced variable relaxor behavior in the high T_C ternary ferroelectric 0.6Bi(Mg_1/2Ti_1/2)O ₃-0.05Bi(Zn_1/2Ti_1/2)O₃-0. 35PbTiO₃

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