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Wright, Adrian J., Palmer, Helen M. 
ORCID: https://orcid.org/0000-0002-7184-269X, Anderson, Paul A. and Greaves, Colin
(2002)
Structures and magnetic ordering in the brownmillerite phases, Sr2MnGaO5 and Ca2MnAlO5.
Journal of Materials Chemistry, 12 (4).
pp. 978-982.
ISSN 0959-9428
Abstract
The crystal and magnetic structures of the two related phases, Sr2MnGaO5 and Ca2MnAlO5 are reported. Rietveld analysis of neutron powder diffraction has revealed that both phases adopt the brownmillerite structure. Subtle differences in structure lead to the structure of Sr2MnGaO5 being best described by the space group Icmm (a = 5.4888(2) Å, b = 16.2256(6) Å, c = 5.35450(2) Å at 2 K) while that of Ca2MnAlO5 is best described by Ibm2 (a = 5.46258(9) Å, b = 14.9532(3) Å, c = 5.23135(8) Å at 2 K). Low temperature neutron powder diffraction data show that both phases have a simple antiferromagnetic structure. However, magnetisation data suggest a more complex picture of the magnetic order within these phases.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | chemistry(all),materials chemistry ,/dk/atira/pure/subjectarea/asjc/1600 |
| Faculty \ School: | Faculty of Medicine and Health Sciences > Norwich Medical School |
| UEA Research Groups: | Faculty of Medicine and Health Sciences > Research Groups > Nutrition and Preventive Medicine Faculty of Science > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 12 Nov 2019 14:32 |
| Last Modified: | 19 Oct 2023 02:35 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/72944 |
| DOI: | 10.1039/b109865a |
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