Characterization of oxygen vacancies and their migration in Ba-doped Pb(Zr0.52Ti0.48)O3 ferroelectrics

M. F. Zhang; Y. Wang; K. F. Wang; J. S. Zhu; J. M. Liu

doi:10.1063/1.3055338

Characterization of oxygen vacancies and their migration in Ba-doped Pb(Zr_0.52Ti_0.48)O₃ ferroelectrics

M. F. Zhang
, Y. Wang
, K. F. Wang
, J. S. Zhu
, J. M. Liu^*

^*Corresponding author for this work

School of Astronautics

Nanjing University
CAS - International Center for Material Physics

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

75 Scopus citations

Abstract

We investigate in detail the migration kinetics of oxygen vacancies (OVs) in Ba-doped Pb(Zr_0.52Ti_0.48)O₃ (PZT) ferroelectrics by complex impedance spectroscopy. The temperature dependent dc-electrical conductivity σ_dc suggests that Ba doping into PZT can lower significantly the density of OVs, leading to the distinctly decreased σ_dc and slightly enhanced activation energy U for the migration of OVs, thus benefiting the polarization fatigue resistance. Furthermore, the polarization fluctuation induced by the relaxation of OVs is reduced by the Ba doping. The Cole-Cole fitting to the dielectric loss manifests strong correlation among OVs, and the migration of OVs appears to be a collective behavior.

Original language	English
Article number	061639
Journal	Journal of Applied Physics
Volume	105
Issue number	6
DOIs	https://doi.org/10.1063/1.3055338
State	Published - 2009

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title = "Characterization of oxygen vacancies and their migration in Ba-doped Pb(Zr0.52Ti0.48)O3 ferroelectrics",

abstract = "We investigate in detail the migration kinetics of oxygen vacancies (OVs) in Ba-doped Pb(Zr0.52Ti0.48)O3 (PZT) ferroelectrics by complex impedance spectroscopy. The temperature dependent dc-electrical conductivity σdc suggests that Ba doping into PZT can lower significantly the density of OVs, leading to the distinctly decreased σdc and slightly enhanced activation energy U for the migration of OVs, thus benefiting the polarization fatigue resistance. Furthermore, the polarization fluctuation induced by the relaxation of OVs is reduced by the Ba doping. The Cole-Cole fitting to the dielectric loss manifests strong correlation among OVs, and the migration of OVs appears to be a collective behavior.",

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T1 - Characterization of oxygen vacancies and their migration in Ba-doped Pb(Zr0.52Ti0.48)O3 ferroelectrics

AU - Zhang, M. F.

AU - Wang, Y.

AU - Wang, K. F.

AU - Zhu, J. S.

AU - Liu, J. M.

PY - 2009

Y1 - 2009

N2 - We investigate in detail the migration kinetics of oxygen vacancies (OVs) in Ba-doped Pb(Zr0.52Ti0.48)O3 (PZT) ferroelectrics by complex impedance spectroscopy. The temperature dependent dc-electrical conductivity σdc suggests that Ba doping into PZT can lower significantly the density of OVs, leading to the distinctly decreased σdc and slightly enhanced activation energy U for the migration of OVs, thus benefiting the polarization fatigue resistance. Furthermore, the polarization fluctuation induced by the relaxation of OVs is reduced by the Ba doping. The Cole-Cole fitting to the dielectric loss manifests strong correlation among OVs, and the migration of OVs appears to be a collective behavior.

AB - We investigate in detail the migration kinetics of oxygen vacancies (OVs) in Ba-doped Pb(Zr0.52Ti0.48)O3 (PZT) ferroelectrics by complex impedance spectroscopy. The temperature dependent dc-electrical conductivity σdc suggests that Ba doping into PZT can lower significantly the density of OVs, leading to the distinctly decreased σdc and slightly enhanced activation energy U for the migration of OVs, thus benefiting the polarization fatigue resistance. Furthermore, the polarization fluctuation induced by the relaxation of OVs is reduced by the Ba doping. The Cole-Cole fitting to the dielectric loss manifests strong correlation among OVs, and the migration of OVs appears to be a collective behavior.

UR - https://www.scopus.com/pages/publications/63749115713

U2 - 10.1063/1.3055338

DO - 10.1063/1.3055338

M3 - 文章

AN - SCOPUS:63749115713

SN - 0021-8979

VL - 105

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 6

M1 - 061639

ER -

Characterization of oxygen vacancies and their migration in Ba-doped Pb(Zr_0.52Ti_0.48)O₃ ferroelectrics

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