INFRARED SPECTROSCOPY AND THE STRUCTURE OF La0.33Zr2(PO4)3-Yb0.33Zr2(PO4)3 SOLID SOLUTIONS

被引：13

作者：

Borovikova, E. Yu. ^{[1
]}

Kurazhkovskaya, V. S. ^{[1
]}

Bykov, D. M. ^{[2
]}

Orlova, A. I. ^{[2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 117234, Russia

[2] NI Lobachevsky State Univ, Nizhnii Novgorod, Russia

来源：

JOURNAL OF STRUCTURAL CHEMISTRY | 2010年 / 51卷 / 01期

关键词：

infrared spectroscopy; factor-group analysis of vibrations; rare earth orthophosphates; NASICON structural type; NASICON-TYPE STRUCTURE; CRYSTAL-STRUCTURES; THERMAL-EXPANSION; ION CONDUCTION; RARE-EARTH; ELECTROLYTE; PHOSPHATES; CHEMISTRY; CERAMICS; LN;

D O I：

10.1007/s10947-010-0006-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Solid solutions of double orthophosphates of zirconium and rare earth lanthanum and ytterbium (La0.33Zr2(PO4)(3)-Yb0.33Zr2(PO4)(3)) that belong to the NASICON (NZP) structural type are synthesized and studied by IR spectroscopy. The factor-group analysis of P-O vibrations in phosphates with P (3) over bar (La0.33Zr2(PO4)(3)) and P (3) over barc (Yb0.33Zr2(PO4)(3)) space groups allows us to assign the intermediate representatives of this series to two different space groups by their IR spectra, which is difficult to perform based on powder X-ray diffraction results. A morphotropic transition P (3) over bar -> P (3) over barc is found to occur near the La1/18Yb5/18Zr2(PO4)(3) composition.

引用

页码：40 / 44

页数：5

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