New layered manganese oxychlorides

被引：0
|
作者：
Knee, CS [1 ]
Weller, MT [1 ]
机构：
[1] Univ Southampton, Dept Chem, Inorgan Mat Grp, Southampton SO17 1BJ, Hants, England
来源：
PEROVSKITE MATERIALS | 2002年 / 718卷
关键词：
D O I：
暂无
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The synthesis, structure and preliminary magnetic characteristics of the new layered. manganese oxide chlorides, Sr2MnO3Cl and Sr4Mn3O8-yCl2 are reported. Sr2MnO3Cl adopts a K2NiF4 type structure with sheets of MnO5 square based pyramids linked through oxygen and separated by SrCl layers; it is the end member of a new family of Ruddlesden-Popper type manganese oxide halides which includes the 3-layer member Sr4Mn3O8-yCl2. Magnetic susceptibility measurements reveal antiferromagnetic transitions at 95 K and 90 K for Sr2MnO3Cl and Sr4Mn3O8-yCl2 respectively. These materials demonstrate the extension of mixed anion chemistry to manganese and will increase flexibility in designing and controlling oxidation states of new GMR materials.
引用
收藏
页码：157 / 162
页数：6
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