STRUCTURE AND LUMINESCENCE OF THE LA1-XGDXF3 SYSTEM

被引：22

作者：

BRIXNER, LH

CRAWFORD, MK

HYATT, G

CARNALL, WT

BLASSE, G

机构：

[1] ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439

[2] STATE UNIV UTRECHT,DEBYE RES INST,3508 TD UTRECHT,NETHERLANDS

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1991年 / 138卷 / 01期

关键词：

D O I：

10.1149/1.2085562

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The trifluorides of La and Gd crystallize in different structures: LaF3 is of the hexagonal tysonite (P3BAR1c) type, while GdF3 crystallizes in orthorhombic (Pnma) symmetry. Solid solutions of the type La(1-x)Gd(x)F3 exist in the hexagonal structure to x = 0.5 and convert to the orthorhombic phase at x = 0.75. Lattice parameters are reported and the x-ray excited luminescence of Gd3+ in these compounds is discussed with particular emphasis on the Gd3+ site symmetry difference C2 in LaF3 and C(s) in GdF3.

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页码：313 / 317

页数：5

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