Crystal growth and structure of La3M4+Ga5O14 (M=Ti, Zr, Hf)

被引：14
|
作者：
Takeda, H
Kato, T
Chani, VI
Shimamura, K
Fukuda, T
机构：
[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, Interdisciplinary Res Ctr, Sendai, Miyagi 9808577, Japan
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 290卷 / 1-2期
关键词：
gallates; crystal growth; crystal structure; single crystal; X-ray diffraction;
D O I：
10.1016/S0925-8388(99)00194-2
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
La3M4+Ga5O14 (M=Ti, Zr, Hf) compounds were crystallized using the micro-pulling down and Czochralski techniques. Both growth methods showed that these three crystals are peritectic compounds. The structure of La3TiGa5O14 (LTiG) crystal was refined using single-crystal X-ray diffraction data. LTiG was observed to be isostructural to Ca3Ga2Ge4O14 (P321 (No.150), Z=1) and the lattice parameters are a=8.223(1), c=5.109(1) Angstrom. The Ti atoms were found to occupy octahedral (1a) and tetrahedral (3f) sites coordinated by six and four oxygen atoms, respectively. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：244 / 249
页数：6
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