Dielectric audio-frequency dispersion in Ba(Ti1 - x Snx)O3 ferroelectrics

Xiaoli Wang; Bo Li

doi:10.1016/j.ssc.2009.01.006

Dielectric audio-frequency dispersion in Ba(Ti_{1 - x} Sn_x)O₃ ferroelectrics

Xiaoli Wang
, Bo Li

机械工程学院

Xi'an Jiaotong University

科研成果: 期刊稿件 › 文章 › 同行评审

20 引用（Scopus）

摘要

Dielectric audio-frequency dispersion behavior exists in both BaTiO₃ ferroelectric and Ba(Ti_1-xSn_x)O₃ relaxors. It is suggested that defect dipoles trapped by random electric fields E_r are the origin of the dielectric audio-frequency dispersion. E_r originates from ferroelectric domains and polar regions, and becomes weaker as temperature increases. Consequently, defect dipoles are being continually released from trapped states to take part in the dielectric response under an applied ac field with increasing temperature. The temperature T_m of maximum permittivity ε_m for Ba(Ti_1-xSn_x)O₃ ceramics becomes frequency-dependent when the permittivity contributed by defect dipoles is large enough.

源语言	英语
页（从-至）	537-539
页数	3
期刊	Solid State Communications
卷	149
期	13-14
DOI	https://doi.org/10.1016/j.ssc.2009.01.006
出版状态	已出版 - 4月 2009

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10.1016/j.ssc.2009.01.006

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title = "Dielectric audio-frequency dispersion in Ba(Ti1 - x Snx)O3 ferroelectrics",

abstract = "Dielectric audio-frequency dispersion behavior exists in both BaTiO3 ferroelectric and Ba(Ti1-xSnx)O3 relaxors. It is suggested that defect dipoles trapped by random electric fields Er are the origin of the dielectric audio-frequency dispersion. Er originates from ferroelectric domains and polar regions, and becomes weaker as temperature increases. Consequently, defect dipoles are being continually released from trapped states to take part in the dielectric response under an applied ac field with increasing temperature. The temperature Tm of maximum permittivity εm for Ba(Ti1-xSnx)O3 ceramics becomes frequency-dependent when the permittivity contributed by defect dipoles is large enough.",

keywords = "A. Ferroelectrics, D. Dielectric response, D. Phase transition",

author = "Xiaoli Wang and Bo Li",

year = "2009",

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doi = "10.1016/j.ssc.2009.01.006",

language = "英语",

volume = "149",

pages = "537--539",

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T1 - Dielectric audio-frequency dispersion in Ba(Ti1 - x Snx)O3 ferroelectrics

AU - Wang, Xiaoli

AU - Li, Bo

PY - 2009/4

Y1 - 2009/4

N2 - Dielectric audio-frequency dispersion behavior exists in both BaTiO3 ferroelectric and Ba(Ti1-xSnx)O3 relaxors. It is suggested that defect dipoles trapped by random electric fields Er are the origin of the dielectric audio-frequency dispersion. Er originates from ferroelectric domains and polar regions, and becomes weaker as temperature increases. Consequently, defect dipoles are being continually released from trapped states to take part in the dielectric response under an applied ac field with increasing temperature. The temperature Tm of maximum permittivity εm for Ba(Ti1-xSnx)O3 ceramics becomes frequency-dependent when the permittivity contributed by defect dipoles is large enough.

AB - Dielectric audio-frequency dispersion behavior exists in both BaTiO3 ferroelectric and Ba(Ti1-xSnx)O3 relaxors. It is suggested that defect dipoles trapped by random electric fields Er are the origin of the dielectric audio-frequency dispersion. Er originates from ferroelectric domains and polar regions, and becomes weaker as temperature increases. Consequently, defect dipoles are being continually released from trapped states to take part in the dielectric response under an applied ac field with increasing temperature. The temperature Tm of maximum permittivity εm for Ba(Ti1-xSnx)O3 ceramics becomes frequency-dependent when the permittivity contributed by defect dipoles is large enough.

KW - A. Ferroelectrics

KW - D. Dielectric response

KW - D. Phase transition

UR - https://www.scopus.com/pages/publications/59649103049

U2 - 10.1016/j.ssc.2009.01.006

DO - 10.1016/j.ssc.2009.01.006

M3 - 文章

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SN - 0038-1098

VL - 149

SP - 537

EP - 539

JO - Solid State Communications

JF - Solid State Communications

IS - 13-14

ER -

Dielectric audio-frequency dispersion in Ba(Ti1 - x Snx)O3 ferroelectrics

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Dielectric audio-frequency dispersion in Ba(Ti_{1 - x} Sn_x)O₃ ferroelectrics