Space-group symmetry for the perovskite Ca0.3Sr0.7TiO3

Space-group symmetry for the perovskite Ca0.3Sr0.7TiO3
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钙钛矿 Ca0.3Sr0.7TiO3 的空间群对称性

DOI:
10.1088/0953-8984/17/44/l01
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发表时间:
2005
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
通讯作者:
M. Takata
M. Takata
中科院分区:
--
文献类型:
--
作者:
C. Howard;R. Withers;Z. Zhang;K. Osaka;K. Kato;M. Takata

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它示出,使用同步辐射X射线粉末衍射在室温及以上,通过调用几何和对称性参数,最直接地通过电子衍射,钙钛矿Ca0.3Sr0.7TiO 3在室温下是四晶型的空间群对称性I4/mcm。这与通常的观点(Ball等1998 J. Solid State Chem.139 238-47)是雅阁的。该化合物在空间群Imma中采用度量四斜方晶系结构的命题(Ranjan和Pandey 1999 J. Phys.:康登斯第2247- 2258章不能继续了
It is shown, using synchrotron x-ray powder diffraction at room temperature and above, by invoking geometrical and symmetry arguments, and most directly by electron diffraction, that the perovskite Ca0.3Sr0.7TiO3 at room temperature is tetragonal with space-group symmetry I4/mcm. This is in accord with the common view (Ball et al 1998 J. Solid State Chem. 139 238–47). The proposition that the compound adopts a metrically tetragonal orthorhombic structure in space group Imma (Ranjan and Pandey 1999 J. Phys.: Condens. Matter 11 2247–58) cannot be sustained.
DOI: 10.2138/am-2002-8-917
发表时间: 2002-08
影响因子: 3.1
作者:
T. Yamanaka;Noriyuki Hirai;Y. Komatsu
通讯作者: T. Yamanaka;Noriyuki Hirai;Y. Komatsu
DOI: 10.1016/j.jssc.2005.06.027
发表时间: 2005-09-01
影响因子: 3.3
作者:
Ali, R;Yashima, M
通讯作者: Yashima, M