A comparative study of oxygen loss on in situ heating in PrMnO3 and BaMnO3
2011 (English)In: International Journal of Modern Physics B, ISSN 0217-9792, Vol. 25, no 9, 1235-1250 p.Article in journal (Refereed) Published
We have thoroughly investigated the Oxygen loss in PrMnO3 and BaMnO3 the end members of the AMnO(3) system, on in situ heating in a reducing at This was done to drive some oxygen out from them and thus possibly alter the valence of the Mn cation. Sample characterization was done through X-ray diffraction and SEM measurements. The core-level photoemission point to oxygen loss from only BaMnO3 changing some of Mn4+ to Mn3+ in it, transfer of some spectral weight to the highly localized Fehrenbacher-Rice states and an increased Mn 3d-O 2p hybridization. Magnetization measurements show that at low temperatures, the samples depict a canted antiferromagnetic ordering.
Place, publisher, year, edition, pages
2011. Vol. 25, no 9, 1235-1250 p.
Pr/BaMnO3, XPS, SQUID, SEM, Mn valence, spectral weight transfer, canted antiferromagnetic ordering
Physical Sciences Engineering and Technology
Research subject Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-154603DOI: 10.1142/S0217979211058651ISI: 000290632200005OAI: oai:DiVA.org:uu-154603DiVA: diva2:421566