Structural anomalies at the magnetic transition in centrosymmetric BiMnO3 (Articolo in rivista)

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  • Structural anomalies at the magnetic transition in centrosymmetric BiMnO3 (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.75.220101 (literal)
Alternative label
  • Montanari E., Calestani G., Righi L., Gilioli E., Bolzoni F., Knight K.S., Radaelli P.G. (2007)
    Structural anomalies at the magnetic transition in centrosymmetric BiMnO3
    in Physical review. B, Rapid communications (online); American Physical Society (APS), College Pk (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Montanari E., Calestani G., Righi L., Gilioli E., Bolzoni F., Knight K.S., Radaelli P.G. (literal)
Pagina inizio
  • 220101-1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://prb.aps.org/abstract/PRB/v75/i22/e220101 (literal)
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  • 75 (literal)
Rivista
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  • 4 (literal)
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  • 22 (literal)
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  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IMEM, Parma; Dipartimento di Chimica GIAF, Parma, Italy; ISIS Facility, Rutherford Appleton Laboratory-CCLRC, Chilton, Didcot, Oxfordshire, OX11 0QX, UK (literal)
Titolo
  • Structural anomalies at the magnetic transition in centrosymmetric BiMnO3 (literal)
Abstract
  • The structural properties of BiMnO3 were determined from neutron powder diffraction data as a function of temperature and magnetic field. The structure at all temperatures was found to be centrosymmetric with space group C2/c, which is incompatible with ferroelectricity. At TC?100 K, we observed the onset of a large magnetoelastic strain, proportional to the square of the magnetization. We interpret this structural rearrangement, together with the previously observed magnetodielectric anomalies, due to the need to optimize the partially frustrated magnetic interactions. (literal)
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