Synthesis, structure, and magnetic properties of a novel mixed-valent strontium rhodium oxide

被引：26
作者：
Claridge, JB [1 ]
zur Loye, HC [1 ]
机构：
[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA
来源：
CHEMISTRY OF MATERIALS | 1998年 / 10卷 / 09期
关键词：
D O I：
10.1021/cm980324a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Sr6Rh5O15, a new n = 1 member of the A(3n+1)A'Bn+3O9+6n family of hexagonal perovskites, has been synthesized. In the structure, RhO6 octahedra form face-sharing linear tetramers, which are linked by RhO6 trigonal prisms to form infinite [RhO3](infinity) chains. Magnetic measurements show that each tetramer contains only one unpaired electron due to rhodium-rhodium interactions. At low temperatures, the systems order antiferromagnetically with an anomolously large drop in susceptibility.
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页码：2320 / +
页数：4
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