Structural and morphological characterization of flux grown YTa7O19, Nd:YTa7O19, Nd:LaTa7O19 and NdTa7O19 crystals

被引：9

作者：

Cavalli, E. ^{[1
]}

Volkova, E. ^{[2
]}

Calestani, G. ^{[1
]}

Leonyuk, N. ^{[2
]}

机构：

[1] Univ Parma, Dipartimento Chim Gen & Inorgan Chim Analit & Chi, I-43100 Parma, Italy

[2] Moscow MV Lomonosov State Univ, Geol Fac, Dept Crystallog & Crystallochem, Moscow 119992, Russia

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 05期

关键词：

oxides; optical material; crystal growth; X-ray diffraction; electron microscopy; LUMINESCENCE PROPERTIES; OPTICAL-SPECTRA;

D O I：

10.1016/j.materresbull.2008.10.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

YTa7O19 (YHT), Nd:YTa7O19 (Nd:YHT), Nd:LaTa7O19 (Nd:LHT) and NdTa7O19 (NHT) single crystals have been grown by spontaneous nucleation from high-temperature solutions using K2Mo3O10-B2O3 as a flux and structurally characterized by X-ray diffraction techniques. The effect of the flux composition on the crystal morphology is discussed. The distribution of the Nd3+ ions in doped crystals has been investigated by electron microprobe analysis, evidencing non-uniform segregation coefficients. The Raman spectra of the investigated compounds are presented, and a reinterpretation of the fine structure present in the optical spectra is proposed in the light of the crystallographic information. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1127 / 1131

页数：5

共 18 条

[1] Optical spectra of flux grown Nd3+:YTa7O19 and Nd3+ :LaTa7O19 crystals [J].