Abstract
Fifteen perovskite-type compounds Sr0.9-xCaxCe0.1MnO3, x=0-0.9 in steps as fine as 0.05, have been synthesised by solid state methods, and the room temperature structures characterised using X-ray synchrotron powder diffraction. At low Ca contents (x≤0.45) the structures are tetragonal in space group I4/mcm and at high Ca contents (x≥0.55) the compounds are orthorhombic in space group Pbnm. At room temperature these two phases co-exist in the compound with x=0.5. XANES measurements show the Ce to be present as Ce4+ in all the oxides. High temperature structures are reported for selected members.
| Original language | English |
|---|---|
| Pages (from-to) | 954-959 |
| Number of pages | 6 |
| Journal | Journal of Solid State Chemistry |
| Volume | 182 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 2009 |
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Keywords
- Jahn-Teller effect
- Perovskite
- Phase transition
ASJC Scopus subject areas
- Condensed Matter Physics
- Inorganic Chemistry
- Physical and Theoretical Chemistry
- Ceramics and Composites
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
Cite this
Structural characterisation of the perovskite series Sr0.9-xCaxCe0.1MnO3 : Influence of the Jahn-Teller effect. / Kennedy, Brendan J.; Ting, Jimmy; Zhou, Qingdi; Zhang, Zhaoming; Matsuda, Motohide; Miyake, Michihiro.
In: Journal of Solid State Chemistry, Vol. 182, No. 4, 04.2009, p. 954-959.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structural characterisation of the perovskite series Sr0.9-xCaxCe0.1MnO3
T2 - Influence of the Jahn-Teller effect
AU - Kennedy, Brendan J.
AU - Ting, Jimmy
AU - Zhou, Qingdi
AU - Zhang, Zhaoming
AU - Matsuda, Motohide
AU - Miyake, Michihiro
PY - 2009/4
Y1 - 2009/4
N2 - Fifteen perovskite-type compounds Sr0.9-xCaxCe0.1MnO3, x=0-0.9 in steps as fine as 0.05, have been synthesised by solid state methods, and the room temperature structures characterised using X-ray synchrotron powder diffraction. At low Ca contents (x≤0.45) the structures are tetragonal in space group I4/mcm and at high Ca contents (x≥0.55) the compounds are orthorhombic in space group Pbnm. At room temperature these two phases co-exist in the compound with x=0.5. XANES measurements show the Ce to be present as Ce4+ in all the oxides. High temperature structures are reported for selected members.
AB - Fifteen perovskite-type compounds Sr0.9-xCaxCe0.1MnO3, x=0-0.9 in steps as fine as 0.05, have been synthesised by solid state methods, and the room temperature structures characterised using X-ray synchrotron powder diffraction. At low Ca contents (x≤0.45) the structures are tetragonal in space group I4/mcm and at high Ca contents (x≥0.55) the compounds are orthorhombic in space group Pbnm. At room temperature these two phases co-exist in the compound with x=0.5. XANES measurements show the Ce to be present as Ce4+ in all the oxides. High temperature structures are reported for selected members.
KW - Jahn-Teller effect
KW - Perovskite
KW - Phase transition
UR - http://www.scopus.com/inward/record.url?scp=62849125237&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=62849125237&partnerID=8YFLogxK
U2 - 10.1016/j.jssc.2008.12.032
DO - 10.1016/j.jssc.2008.12.032
M3 - Article
AN - SCOPUS:62849125237
VL - 182
SP - 954
EP - 959
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
SN - 0022-4596
IS - 4
ER -