Crystal structure of ALaMnFeO(6) (A = Ca, Sr, Ba)
2006 (English)In: Physica. B, Condensed matter, ISSN 0921-4526, Vol. 385, 103-105 p.Article in journal (Refereed) Published
The crystal structures of perovskites of the formula ALaMnFeO(6) (A = Ca, Sr, Ba) have been characterised by powder X-ray, neutron powder diffraction and Mossbauer spectroscopy. Both CaLaMnFeO6 and BaLaMnFeO6 were found to crystallise in orthorhombic symmetry (space group Pbnm), whereas SrLaMnFeO6 was rhombohedral (space group R (3) over barc). No evidence of phase transformation or magnetic structure was noticed in the low-temperature (10K) neutron diffraction measurements. The Mossbauer parameters indicate that iron is present in Fe3+ high-spin (d(5) configuration) state in octahedral coordination.
Place, publisher, year, edition, pages
2006. Vol. 385, 103-105 p.
double perovskites, neutron diffraction, Mossbauer spectroscopy, crystal structure, Rietveld refinement
IdentifiersURN: urn:nbn:se:uu:diva-151368DOI: 10.1016/j.physb.2006.05.116ISI: 000243096400031OAI: oai:DiVA.org:uu-151368DiVA: diva2:409695