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Isolated spin 3/2 plaquettes in Na3RuO4
被引:17
|作者:
Regan, KA
[1
]
Huang, Q
Cava, RJ
机构:
[1] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA
[2] Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD 20899 USA
基金:
美国国家科学基金会;
关键词:
ruthenates;
Na3RuO4;
magnetic properties;
D O I:
10.1016/j.jssc.2005.04.014
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
The crystal structure of Na3RuO4 determined by powder neutron diffraction is reported. The structure consists of isolated tetranters of edge sharing RuO6 octahedra in the ab plane, creating isolated four-member plaquettes of Ru atoms comprised of two equilateral triangles sharing an edge. Magnetic susceptibility measurements reveal an anti ferromagnetic transition at similar to 29 K, with theta(w) = -141 K. Neutron diffraction data indicate the onset of three-dimensional magnetic ordering at 29 K. (c) 2005 Elsevier Inc. All rights reserved.
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页码:2104 / 2108
页数:5
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