TY - JOUR
T1 - Space-group symmetry for the perovskite Ca0.3Sr 0.7TiO3
AU - Howard, C. J.
AU - Withers, R. L.
AU - Zhang, Z.
AU - Osaka, K.
AU - Kato, K.
AU - Takata, M.
PY - 2005/11/9
Y1 - 2005/11/9
N2 - 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 Ca0.3Sr 0.7TiO3 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.
AB - 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 Ca0.3Sr 0.7TiO3 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.
UR - http://www.scopus.com/inward/record.url?scp=27144468644&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27144468644&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/17/44/L01
DO - 10.1088/0953-8984/17/44/L01
M3 - Article
AN - SCOPUS:27144468644
SN - 0953-8984
VL - 17
SP - L459-L465
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 44
ER -