Short-range structure of Pb1-xBaxZr0.65Ti0.35O3 ceramic compounds probed by XAS and Raman scattering techniques

被引：15

作者：

Mastelaro, V. R. ^{[1
]}

Mesquita, A. ^{[1
]}

Neves, P. P. ^{[2
]}

Michalowicz, A. ^{[3
,4
]}

Bounif, M. ^{[3
,4
]}

Pizani, P. S. ^{[5
]}

Joya, M. R. ^{[5
]}

Eiras, J. A. ^{[5
]}

机构：

[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Paulo, Brazil

[2] Univ Fed Alfenas, Dept Ciencias Exatas, BR-37130000 Alfenas, MG, Brazil

[3] Univ Paris 12, Inst Chim & Mat Paris Est, CNRS, F-94320 Thiais, France

[4] Univ Paris Est, F-94320 Thiais, France

[5] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Paulo, Brazil

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

barium compounds; ceramics; crystal symmetry; lead compounds; Raman spectra; solid solutions; vibrational modes; XANES; X-ray diffraction; zirconium compounds; FERROELECTRIC PHASE-TRANSITION; NEAR-EDGE STRUCTURE; DISORDER; PEROVSKITES; CRYSTALS; BATIO3; PBTIO3;

D O I：

10.1063/1.3073942

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ti K-edge x-ray absorption near-edge spectroscopy (XANES) and Raman scattering were used to study the solid solution effects on the structural and vibrational properties of Pb1-xBaxZr0.65Ti0.35O3 with 0.0 < x < 0.40. Compared with x-ray diffraction techniques, which indicates that the average crystal symmetry changes with the substitution of Pb by Ba ions or with temperature variations for samples with x=0.00, 0.10, and 0.20, local structural probes such as XANES and Raman scattering results demonstrate that at local level, the symmetry changes are much less prominent. Theoretical XANES spectra calculation corroborate with the interpretation of the XANES experimental data.

引用

页数：6

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