0134051 - FZU-D 20020339 RIV DE eng J - Journal Article
Dlouhá, M. - Vratislav, S. - Jirák, Zdeněk - Hejtmánek, Jiří - Knížek, Karel - Sedmidubský, David
Structure and magnetic order in Y1-xCaxMnO3 (x=0.3 and 0.5).
Applied Physics A - Materials Science & Processing. Roč. 74, Suppl. (2002), s. S673-S676. ISSN 0947-8396. E-ISSN 1432-0630
Institutional research plan: CEZ:AV0Z1010914
Keywords : perovskite manganite * neutron diffraction * Jahn-Tellermagnetic order
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.231, year: 2002

Perovskite manganites with the small Y, Ca cations were investigated using neutron diffraction. The system Y0.7Ca0.3MnO3 displays a cooperative Jahn-Teller ordering of the LaMnO3 kind. Manganese spins are largely frustrated with some short-range correlations of the antiferromagnetic or canted type.The compound Y0.5Ca0.5MnO3 exhibits a Mn3+/Mn4+ (1:1) charge ordering below 290K, followed at 115K.
Permanent Link: http://hdl.handle.net/11104/0000649