Počet záznamů: 1

Feromagnetism versus charge ordering in the Pr.sub.0.5./sub.Ca.sub.0.5./sub.MnO.sub.3./sub. and La.sub.0.5./sub.Ca.sub.0.5./sub.MnO.sub.3./sub. nanocrystals

  1. 1.
    0341860 - FZU-D 2011 RIV US eng J - Článek v odborném periodiku
    Jirák, Zdeněk - Hadová, Eva - Kaman, Ondřej - Knížek, Karel - Maryško, Miroslav - Pollert, Emil - Dlouhá, M. - Vratislav, S.
    Feromagnetism versus charge ordering in the Pr0.5Ca0.5MnO3 and La0.5Ca0.5MnO3 nanocrystals.
    Physical Review. B. Roč. 81, č. 2 (2010), 024403/1-024403/8 ISSN 1098-0121
    Grant CEP: GA AV ČR KAN200200651
    Výzkumný záměr: CEZ:AV0Z10100521
    Klíčová slova: neutron diffraction * magnetic dynamics * charge ordering
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 3.772, rok: 2010

    The half-doped manganites Pr0.5Ca0.5MnO3 and La0.5Ca0.5MnO3 have been studied by structural and magnetic methods. Though the room temperature structure is not affected by the nanosize form, the charge ordering transition, common for bulk systems, is not developed at low temperatures. This different behaviour is explained by effects of the particle surface.
    Trvalý link: http://hdl.handle.net/11104/0184719