SHORT-RANGE ORDER IN THE ANION-EXCESS FLUORITE-RELATED CA0.68LN0.32 F2.32 SOLID-SOLUTIONS - EXAFS STUDY OF THE LN3+ ENVIRONMENT

被引：41

作者：

LAVAL, JP

ABAOUZ, A

FRIT, B

LEBAIL, A

机构：

[1] FAC SCI LIMOGES,CHIM MIN STRUCT LAB,CNRS,UA 320,123 AVE A THOMAS,F-87060 LIMOGES,FRANCE

[2] UNIV MAINE,FLUORURES LAB,CNRS,UA 449,F-72017 LE MANS,FRANCE

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1990年 / 85卷 / 01期

关键词：

D O I：

10.1016/S0022-4596(05)80068-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Anion-excess fluorite-typeCa0.68Ln0.32F2.32series and Ca2LnF7-related low-temperature superstructures were studied by EXAFS. This analysis, completed with a structure refinement of Ca2LuF7, shows the narrow analogy between clustering in ordered and disordered states. It confirms the change in short-range order whenLn3+size increases, as previously evidenced by a neutron diffraction study. © 1990 Academic Press, Inc. All rights reserved.

引用

页码：133 / 143

页数：11

共 22 条

[1] THE CRYSTAL-STRUCTURE OF TVEITITE, AN ORDERED YTTROFLUORITE MINERAL [J].