An investigation on phase transition behaviors in MgO-doped Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 ferroelectric ceramics by Raman and dielectric measurements

Junxia Wang; Genshui Wang; Xuefeng Chen; Zhigao Hu; Hengchang Nie; Fei Cao; Xianlin Dong

doi:10.1016/j.mseb.2014.12.010

An investigation on phase transition behaviors in MgO-doped Pb_0.99(Zr_0.95Ti_0.05)_0.98Nb_0.02O₃ ferroelectric ceramics by Raman and dielectric measurements

Junxia Wang
, Genshui Wang
, Xuefeng Chen
, Zhigao Hu
, Hengchang Nie
, Fei Cao
, Xianlin Dong^*

^*Corresponding author for this work

School of Physics and Electronic Science

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

9 Scopus citations

Abstract

The phase transition behaviors of Pb_0.99(Zr_0.95Ti_0.05)_0.98Nb_0.02O₃ ferroelectric ceramics doped with different MgO concentrations (0-0.2 wt%) were systematically investigated by Raman and dielectric measurements. Raman results showed that the phase transitions were strongly dependent on MgO concentration. It was found that the low temperature rhombohedral (F_R(LT))-high temperature rhombohedral (F_R(HT)) ferroelectric phase transition shifted toward a lower temperature with increasing MgO concentration up to 0.1 wt%, while the F_R(HT)-cubic paraelectric (P_C) phase transition changed to a higher temperature. The Raman results were in good agreement with phase transition determined by dielectric measurements. Moreover, it was indicated that the changes of Raman active modes were related to distortion of BO₆ octahedra during the phase transitions. Then, the distortion of BO₆ octahedron caused by B-site replacement of Mg²⁺ ions was proposed to explain the observed behaviors. In addition, the effects of MgO doping on the dielectric, ferroelectric and pyroelectric properties were also discussed.

Original language	English
Pages (from-to)	170-174
Number of pages	5
Journal	Materials Science and Engineering: B
Volume	193
Issue number	C
DOIs	https://doi.org/10.1016/j.mseb.2014.12.010
State	Published - 1 Jul 2015

Keywords

PZT 95/5 ceramics Phase transition Raman Dielectric properties

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10.1016/j.mseb.2014.12.010

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title = "An investigation on phase transition behaviors in MgO-doped Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 ferroelectric ceramics by Raman and dielectric measurements",

abstract = "The phase transition behaviors of Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 ferroelectric ceramics doped with different MgO concentrations (0-0.2 wt\%) were systematically investigated by Raman and dielectric measurements. Raman results showed that the phase transitions were strongly dependent on MgO concentration. It was found that the low temperature rhombohedral (FR(LT))-high temperature rhombohedral (FR(HT)) ferroelectric phase transition shifted toward a lower temperature with increasing MgO concentration up to 0.1 wt\%, while the FR(HT)-cubic paraelectric (PC) phase transition changed to a higher temperature. The Raman results were in good agreement with phase transition determined by dielectric measurements. Moreover, it was indicated that the changes of Raman active modes were related to distortion of BO6 octahedra during the phase transitions. Then, the distortion of BO6 octahedron caused by B-site replacement of Mg2+ ions was proposed to explain the observed behaviors. In addition, the effects of MgO doping on the dielectric, ferroelectric and pyroelectric properties were also discussed.",

keywords = "PZT 95/5 ceramics Phase transition Raman Dielectric properties",

author = "Junxia Wang and Genshui Wang and Xuefeng Chen and Zhigao Hu and Hengchang Nie and Fei Cao and Xianlin Dong",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2015",

month = jul,

day = "1",

doi = "10.1016/j.mseb.2014.12.010",

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T1 - An investigation on phase transition behaviors in MgO-doped Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 ferroelectric ceramics by Raman and dielectric measurements

AU - Wang, Junxia

AU - Wang, Genshui

AU - Chen, Xuefeng

AU - Hu, Zhigao

AU - Nie, Hengchang

AU - Cao, Fei

AU - Dong, Xianlin

PY - 2015/7/1

Y1 - 2015/7/1

N2 - The phase transition behaviors of Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 ferroelectric ceramics doped with different MgO concentrations (0-0.2 wt%) were systematically investigated by Raman and dielectric measurements. Raman results showed that the phase transitions were strongly dependent on MgO concentration. It was found that the low temperature rhombohedral (FR(LT))-high temperature rhombohedral (FR(HT)) ferroelectric phase transition shifted toward a lower temperature with increasing MgO concentration up to 0.1 wt%, while the FR(HT)-cubic paraelectric (PC) phase transition changed to a higher temperature. The Raman results were in good agreement with phase transition determined by dielectric measurements. Moreover, it was indicated that the changes of Raman active modes were related to distortion of BO6 octahedra during the phase transitions. Then, the distortion of BO6 octahedron caused by B-site replacement of Mg2+ ions was proposed to explain the observed behaviors. In addition, the effects of MgO doping on the dielectric, ferroelectric and pyroelectric properties were also discussed.

AB - The phase transition behaviors of Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 ferroelectric ceramics doped with different MgO concentrations (0-0.2 wt%) were systematically investigated by Raman and dielectric measurements. Raman results showed that the phase transitions were strongly dependent on MgO concentration. It was found that the low temperature rhombohedral (FR(LT))-high temperature rhombohedral (FR(HT)) ferroelectric phase transition shifted toward a lower temperature with increasing MgO concentration up to 0.1 wt%, while the FR(HT)-cubic paraelectric (PC) phase transition changed to a higher temperature. The Raman results were in good agreement with phase transition determined by dielectric measurements. Moreover, it was indicated that the changes of Raman active modes were related to distortion of BO6 octahedra during the phase transitions. Then, the distortion of BO6 octahedron caused by B-site replacement of Mg2+ ions was proposed to explain the observed behaviors. In addition, the effects of MgO doping on the dielectric, ferroelectric and pyroelectric properties were also discussed.

KW - PZT 95/5 ceramics Phase transition Raman Dielectric properties

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U2 - 10.1016/j.mseb.2014.12.010

DO - 10.1016/j.mseb.2014.12.010

M3 - 文章

AN - SCOPUS:84961288638

SN - 0921-5107

VL - 193

SP - 170

EP - 174

JO - Materials Science and Engineering: B

JF - Materials Science and Engineering: B

IS - C

ER -

An investigation on phase transition behaviors in MgO-doped Pb_0.99(Zr_0.95Ti_0.05)_0.98Nb_0.02O₃ ferroelectric ceramics by Raman and dielectric measurements

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