Ba8CoNb6O24:: A d0 dielectric oxide host containing ordered d7 cation layers 1.88 nm apart

被引:30
作者
Mallinson, PM
Allix, MMB
Claridge, JB
Ibberson, RM
Iddles, DM
Price, T
Rosseinsky, MJ [1 ]
机构
[1] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England
[2] Rutherford Appleton Lab, CCLRC, Didcot OX11 0QX, Oxon, England
[3] Filtron Comtek, Div Ceram, Wolverhampton WV10 7DB, W Midlands, England
基金
英国工程与自然科学研究理事会;
关键词
cations; dielectric materials; perovskite phases; transition-metal oxides; X-ray diffraction;
D O I
10.1002/anie.200500135
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) Following orders: The cobalt and niobium ions in Ba 8CoNb6O24 are completely ordered in the seven-layer repeat of hexagonal and cubic stacking. Such site-ordered solids may find application as microwave dielectric resonators, for example, in mobile telecommunications. In the structure shown, {CoO6} and {NbO 6} units are red and blue octahedra, respectively, and barium cations are black spheres. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7733 / 7736
页数:4
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