Investigation of orthorhombic-to-tetragonal structural phase transition in (Ba1-xCax)(Zr0.05Ti0.95)O3 ferroelectric ceramics using micro-Raman scattering

被引：14
|
作者：
Singh, Gurvinderjit [1 ]
Sathe, Vasant [2 ]
Tiwari, V. S. [1 ]
机构：
[1] Raja Ramanna Ctr Adv Technol, Laser Mat Dev & Devices Div, Indore 452013, Madhya Pradesh, India
[2] UGC DAE Consortium Sci Res, Indore 452017, Madhya Pradesh, India
来源：
JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 04期
关键词：
BARIUM-TITANATE CERAMICS; LEAD-FREE CERAMICS; PIEZOELECTRIC PROPERTIES; BATIO3; DEPENDENCE; CRYSTALS; SPECTRUM;
D O I：
10.1063/1.4863303
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ferroelectric phase transition from orthorhombic-to-tetragonal phase was investigated in (Ba1-xCax)(Zr0.05Ti0.95)O-3 ceramics [x = 0.05, 0.08, 0.10] by micro-Raman scattering. The room temperature Raman scattering reveals the presence of orthorhombic-tetragonal phase co-existence by emergence of tetragonal phase with increase in calcium content. The temperature dependent Raman spectra also show similar cross-over with hardening of A(TO2) mode and disappearance of A(LO1) mode as system moves from orthorhombic-to-tetragonal phase. A thermal hysteresis of similar to 10K was observed in orthorhombic-to-tetragonal transition. (C) 2014 AIP Publishing LLC.
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页数：6
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