Short range polar state transitions and deviation from Rayleigh-type behaviour in Bi0.5Na0.5TiO3-based perovskites

Giuseppe Viola; Yongqiang Tan; Ruth Agnes McKinnon; Xiaoyong Wei; Haixue Yan; Michael John Reece

doi:10.1063/1.4895559

Short range polar state transitions and deviation from Rayleigh-type behaviour in Bi_0.5Na_0.5TiO₃-based perovskites

Giuseppe Viola
, Yongqiang Tan
, Ruth Agnes McKinnon
, Xiaoyong Wei
, Haixue Yan
, Michael John Reece

Faculty of Electronic and Information Engineering

Queen Mary University of London
Institute of Materials Physics and Engineering

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

11 Scopus citations

Abstract

The polarization response of 0.95[0.94(Bi_0.5Na_(0.45)Li_0.05)TiO₃-0.06BaTiO₃]-0.05CaTiO₃ceramics was studied under weak applied cyclic electric fields with different amplitudes and frequency. The analysis of the polarization signals showed that in the ferroelectric phase the non-linearity is dominated by a Rayleigh-type dynamics, while in the ergodic relaxor phase the polarization response deviates from the Rayleigh-type behaviour due to the occurrence of short range electric field-induced transitions, evidenced by the presence of four distinct frequency independent current broad peaks in the current-electric field loops, which gives rise to a characteristic non-linear polarization-electric field loop with reduced hysteresis and weak frequency dependence.

Original language	English
Article number	102906
Journal	Applied Physics Letters
Volume	105
Issue number	10
DOIs	https://doi.org/10.1063/1.4895559
State	Published - 8 Sep 2014

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title = "Short range polar state transitions and deviation from Rayleigh-type behaviour in Bi0.5Na0.5TiO3-based perovskites",

abstract = "The polarization response of 0.95[0.94(Bi0.5Na(0.45)Li0.05)TiO3-0.06BaTiO3]-0.05CaTiO3ceramics was studied under weak applied cyclic electric fields with different amplitudes and frequency. The analysis of the polarization signals showed that in the ferroelectric phase the non-linearity is dominated by a Rayleigh-type dynamics, while in the ergodic relaxor phase the polarization response deviates from the Rayleigh-type behaviour due to the occurrence of short range electric field-induced transitions, evidenced by the presence of four distinct frequency independent current broad peaks in the current-electric field loops, which gives rise to a characteristic non-linear polarization-electric field loop with reduced hysteresis and weak frequency dependence.",

author = "Giuseppe Viola and Yongqiang Tan and McKinnon, \{Ruth Agnes\} and Xiaoyong Wei and Haixue Yan and Reece, \{Michael John\}",

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day = "8",

doi = "10.1063/1.4895559",

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T1 - Short range polar state transitions and deviation from Rayleigh-type behaviour in Bi0.5Na0.5TiO3-based perovskites

AU - Viola, Giuseppe

AU - Tan, Yongqiang

AU - McKinnon, Ruth Agnes

AU - Wei, Xiaoyong

AU - Yan, Haixue

AU - Reece, Michael John

PY - 2014/9/8

Y1 - 2014/9/8

N2 - The polarization response of 0.95[0.94(Bi0.5Na(0.45)Li0.05)TiO3-0.06BaTiO3]-0.05CaTiO3ceramics was studied under weak applied cyclic electric fields with different amplitudes and frequency. The analysis of the polarization signals showed that in the ferroelectric phase the non-linearity is dominated by a Rayleigh-type dynamics, while in the ergodic relaxor phase the polarization response deviates from the Rayleigh-type behaviour due to the occurrence of short range electric field-induced transitions, evidenced by the presence of four distinct frequency independent current broad peaks in the current-electric field loops, which gives rise to a characteristic non-linear polarization-electric field loop with reduced hysteresis and weak frequency dependence.

AB - The polarization response of 0.95[0.94(Bi0.5Na(0.45)Li0.05)TiO3-0.06BaTiO3]-0.05CaTiO3ceramics was studied under weak applied cyclic electric fields with different amplitudes and frequency. The analysis of the polarization signals showed that in the ferroelectric phase the non-linearity is dominated by a Rayleigh-type dynamics, while in the ergodic relaxor phase the polarization response deviates from the Rayleigh-type behaviour due to the occurrence of short range electric field-induced transitions, evidenced by the presence of four distinct frequency independent current broad peaks in the current-electric field loops, which gives rise to a characteristic non-linear polarization-electric field loop with reduced hysteresis and weak frequency dependence.

UR - https://www.scopus.com/pages/publications/84907101334

U2 - 10.1063/1.4895559

DO - 10.1063/1.4895559

M3 - 文章

AN - SCOPUS:84907101334

SN - 0003-6951

VL - 105

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 10

M1 - 102906

ER -

Short range polar state transitions and deviation from Rayleigh-type behaviour in Bi_0.5Na_0.5TiO₃-based perovskites

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