AC conduction of Ba1-xCaxTiO3 and BZT-BCTx

被引：4

作者：

Nguyen Van Khien ^{[1
]}

Than Trong Huy ^{[4
]}

Le Van Hong ^{[2
,3
]}

机构：

[1] Thai Nguyen Univ, Thai Nguyen, Vietnam

[2] VAST, Inst Mat Sci, Hanoi, Vietnam

[3] Duy Tan Univ, Da Nang, Vietnam

[4] Phu Xuan Univ, Hue, Vietnam

来源：

PHYSICA B-CONDENSED MATTER | 2018年 / 532卷

关键词：

Ferroelectrics; Dielectrics; Substitution effect; XRD; AC conduction; PIEZOELECTRIC CERAMICS; DIELECTRIC-PROPERTIES; RELAXATION;

D O I：

10.1016/j.physb.2017.04.017

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Ba1-xCaxTiO3 (BCTx), (x = 0.0-0.3) and Ba0.8Zr0.2TiO3-Ba1-xCaxTiO3 (BZT-BCTx), (x=0.15-0.35) were fabricated by the solid state reaction method. Phase structure of the material samples was identified by X-ray diffraction. The impedance versus frequency in a range of 100 Hz to 2.5 MHz was measured for all the samples at room temperature. AC conductivity versus frequency of the BCTx and BZT-BCTx was evaluated and fitted by using the extended Universal Dielectric Response (UDR) equations. The fitting results were discussed in detail and shown that the localized reorientation polarization-based mechanism is most contributed in BCTx matrial samples. Basically both two the hopping polaron and polarization mechanisms play roles in BZT-BCTx material samples. In contrary the short-range polaron hopping is dominated in ac conductivity of BZT-BCTx material samples in low frequency range.

引用

页码：126 / 129

页数：4

共 25 条

[1] Dielectric and magnetic study of BaTi0.5Mn0.5O3 ceramics, synthesized by solid state sintering, mechanical alloying and chemical routes
Bhowmik, R. N.
[J]. CERAMICS INTERNATIONAL, 2012, 38 (06) : 5069 - 5080
[2] Preparation and characterization of Co-doped BaTiO3 nanosized powders and ceramics
Cui, Bin
Yu, Pengfei
Tian, Jing
Chang, Zhuguo
[J]. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2006, 133 (1-3): : 205 - 208
[3] Reduction of the piezoelectric performance in lead-free (1-x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 piezoceramics under uniaxial compressive stress
Ehmke, Matthias C.
Daniels, John
Glaum, Julia
Hoffman, Mark
Blendell, John E.
Bowman, Keith J.
[J]. JOURNAL OF APPLIED PHYSICS, 2012, 112 (11)
[4] AC Electrical Conductivity and Dielectric Properties of Perovskite (Pb, Ca)TiO3 Ceramic
El-Mallah, H. M.
[J]. ACTA PHYSICA POLONICA A, 2012, 122 (01) : 174 - 179
[5] JUMP RELAXATION IN SOLID ELECTROLYTES
FUNKE, K
[J]. PROGRESS IN SOLID STATE CHEMISTRY, 1993, 22 (02) : 111 - 195
[6] Microstructure basis for strong piezoelectricity in Pb-free Ba(Zr0.2Ti0.8)O3-(Ba0.7Ca0.3)TiO3 ceramics
Gao, Jinghui
Xue, Dezhen
Wang, Yu
Wang, Dong
Zhang, Lixue
Wu, Haijun
Guo, Shengwu
Bao, Huixin
Zhou, Chao
Liu, Wenfeng
Hou, Sen
Xiao, Ge
Ren, Xiaobing
[J]. APPLIED PHYSICS LETTERS, 2011, 99 (09)
[7] Gibsen H.W., 1983, J PHYS S, V6, P123
[8] AC conductivity of unconventional bismuth cuprate glass
Hazra, S
Ghosh, A
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (19) : 3981 - 3986
[9] Structural and dielectric properties of La0.8Te0.2MnO3
Husain, Shahid
Bhat, Irshad
Khan, Wasi
Al-Khataby, Lila
[J]. SOLID STATE COMMUNICATIONS, 2013, 157 : 29 - 33
[10] UNIVERSAL DIELECTRIC RESPONSE
JONSCHER, AK
[J]. NATURE, 1977, 267 (5613) : 673 - 679

← 1 2 3 →