Crystallographic and magnetic characterisation of the brownmillerite Sr2Co2O5
β Scribed by Eirin Sullivan; Joke Hadermann; Colin Greaves
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 685 KB
- Volume
- 184
- Category
- Article
- ISSN
- 0022-4596
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The crystal structure of La 2 Co 2 O 5 is determined on the basis of high-resolution powder X-ray diffraction and neutron diffraction data. La 2 Co 2 O 5 adopts the brownmillerite-type structure, where single layers of corner-sharing CoO -octahedra are connected by layers with chains of corner-shari
The evolution of crystal and magnetic structures of Sr 2 Fe 2 O 5 with temperature was studied using neutron powder di4raction. The measurements were made in the temperature range from room temperature up to 1223.15 K and the patterns were analyzed using the Rietveld method. The oxide undergoes two