Growth and morphology of Nd3+, Er3+ and Cr3+ doped YAl3(BO3)4 single crystals

被引：0
作者：
Beregi, E
Hartmann, E
Malicskó, L
Madarász, J
机构：
[1] HAS, Res Inst Solid State Phys & Opt, H-1121 Budapest, Hungary
[2] Tech Univ Budapest, Inst Gen & Analyt Chem, Budapest, Hungary
来源：
CRYSTAL RESEARCH AND TECHNOLOGY | 1999年 / 34卷 / 5-6期
关键词：
growth; morphology; yttrium-aluminium borate; top-seeded solution gowth; lattice parameters; NYAB;
D O I：
10.1002/(SICI)1521-4079(199906)34:5/6<641::AID-CRAT641>3.0.CO;2-G
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Nd3+, Er3+ and Cr3+ doped large single crystals of YAl3(BO3)(4) were grown by spontaneous crystallisation and by top-seeded solution growth (TSSG) from a K2Mo3O10 and B2O3 flux. The crystals were grown in 0001 orientation with cooling rate 2.4 degrees C/day. The small crystals grown by spontaneous nucleation usually had simple needle shape, while the large crystals grown by TSSG method had either isometrical habit or tabular one. The results suggest that the extremely large pinacoid faces appearing in the case of YAB:Cr3+ growth are due to a high temperature gradient in the flux, and evaporation of the solution. The lattice structure of crystals checked by powder X-ray diffraction is isomorphous to YAB with space group R32. The dependence of crystal habits and growth conditions is discussed.
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页码：641 / 645
页数：5
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