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Space group symmetry of (CaxSr1−x)TiO3 determined using electron diffraction
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Woodward, David I., Wise, P. L., Lee, W. E. and Reaney, Ian M. (2006) Space group symmetry of (CaxSr1−x)TiO3 determined using electron diffraction. Journal of Physics: Condensed Matter, Vol.18 (No.8). pp. 2401-2408. doi:10.1088/0953-8984/18/8/005
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Official URL: http://dx.doi.org/10.1088/0953-8984/18/8/005
Abstract
An electron diffraction study performed on thin sections of Cax Sr1−x TiO3 ceramics with compositions x = 0.2 and 0.5 has revealed diffraction patterns that are inconsistent with currently accepted space group symmetries. Here, the data are presented and alternative models suggested. It is proposed that Cax Sr1−x TiO3 has the space group C2/m at x = 0.2 and the space group P21/m across the range 0.2 < x < 0.6. The sequence of phases across the solid solution is therefore proposed to be
P m3¯m ⇒ I 4/m cm ⇒ C2/m ⇒ P21/m ⇒ P nm a
x = 0 x < 0.2 x = 0.2 0.2 < x < 0.6 x > 0.6.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Electrons -- Diffraction, Electronic ceramics, Space groups, Condensed matter, Solutions, Solid | ||||
| Journal or Publication Title: | Journal of Physics: Condensed Matter | ||||
| Publisher: | Institute of Physics Publishing Ltd. | ||||
| ISSN: | 0953-8984 | ||||
| Official Date: | 2006 | ||||
| Dates: |
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| Volume: | Vol.18 | ||||
| Number: | No.8 | ||||
| Page Range: | pp. 2401-2408 | ||||
| DOI: | 10.1088/0953-8984/18/8/005 | ||||
| Status: | Peer Reviewed |
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