X-ray diffraction study of an inhomogeneous langasite (La3Ga5SiO14) crystal

被引：5

作者：

Kuz'micheva, GM

Rybakov, VB

Domoroshchina, EN

Dubovskii, AB

机构：

[1] Lomonosov State Acad Fine Chem Technol, Moscow 117571, Russia

[2] Moscow MV Lomonosov State Univ, Moscow 119899, Russia

[3] All Russia Res Inst Mineral Mat Synth, Aleksandrov 601650, Vladimir Oblast, Russia

来源：

INORGANIC MATERIALS | 2002年 / 38卷 / 10期

关键词：

Inorganic Chemistry; Solid Solution; Diffraction Study; Peripheral Part; GaSi;

D O I：

10.1023/A:1020585506932

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Czochralski-grown langasite, La3Ga5SiO14 (La3Ga4(GaSi)O-14), crystal was studied by x-ray diffraction. The crystal was found to consist of two isostructural solid solutions, except in the center of the tail end. The solid solutions differ in the Ga and Si occupancies on the (Ga,Si) site: Ga > Si in solid solution I, and Si > Ga in solid solution II. The composition of I (center of the tail end) is La3Ga4(Ga1.14Si0.86(4))O(13.84)rectangle(0.16(11)). The composition of II, which coexists with I in the peripheral part of the tail end, is (La(2.95)rectangle(0.05))Ga-4(Ga0.84Si1.16(6))O-14.

引用

页码：1040 / 1047

页数：8

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