STRUCTURAL AND MAGNETIC-PROPERTIES OF SEVERAL COBALT(II) WEBERITES

被引：9

作者：

BOIREAU, A

GRAVEREAU, P

DANCE, JM

TRESSAUD, A

HAGENMULLER, P

SOUBEYROUX, JL

WELSCH, M

BABEL, D

机构：

[1] CNRS,CRISTALLOG LAB,F-38042 GRENOBLE,FRANCE

[2] UNIV MARBURG,ZENTRUM MAT WISSENSCH,FACHBEREICH CHEM,W-3550 MARBURG,GERMANY

来源：

MATERIALS RESEARCH BULLETIN | 1993年 / 28卷 / 01期

关键词：

WEBERITE-RELATED CRYSTAL STRUCTURE; FLUORIDES;

D O I：

10.1016/0025-5408(93)90005-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural and magnetic properties of Na2CoMF7 compounds (M = Al, Cr, Fe), showing a new structure deriving from that of weberite have been investigated. The monoclinic structure, favored by cobalt (II) ions, is intermediate between the orthorhombic type (Na2NiFeF7) and the trigonal type (Na2MnFeF7). It exhibits (CoF5)n3n- chains which run along the [110] and [110] directions, forming a sequence of double layers [Co2MF10]n3n-. The influence of the trivalent cation within the layers and between them on the magnetic behavior is demonstrated.

引用

页码：27 / 38

页数：12

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