Effect of Cr substitution on the crystal and magnetic structure of (Pr0.55Ca0.45)MnO3: A neutron powder diffraction investigation (Articolo in rivista)

Type
Label
  • Effect of Cr substitution on the crystal and magnetic structure of (Pr0.55Ca0.45)MnO3: A neutron powder diffraction investigation (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.73.064423 (literal)
Alternative label
  • Martinelli A., Ferretti M., Castellano C., Mondelli C., Cimberle M.R., Tropeano M., Ritter C. (2006)
    Effect of Cr substitution on the crystal and magnetic structure of (Pr0.55Ca0.45)MnO3: A neutron powder diffraction investigation
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Martinelli A., Ferretti M., Castellano C., Mondelli C., Cimberle M.R., Tropeano M., Ritter C. (literal)
Pagina inizio
  • 064423-1 (literal)
Pagina fine
  • 064423-9 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 73 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR, INFM, LAMIA, I-16152 Genoa, Italy; Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; CNR, INFM, F-38042 Grenoble 9, France; Inst Max Von Laue Paul Langevin, CRS Soft, F-38042 Grenoble 9, France; Univ Genoa, Dipartimento Fis, CNR, IMEM,Sezione Genova, I-16146 Genoa, Italy; Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France (literal)
Titolo
  • Effect of Cr substitution on the crystal and magnetic structure of (Pr0.55Ca0.45)MnO3: A neutron powder diffraction investigation (literal)
Abstract
  • The crystal and magnetic structures of (Pr0.55Ca0.45)(Mn1-yCry)O-3 (y=0.00,0.03,0.06) have been investigated between 5 and 300 K by neutron powder diffraction and dc magnetic measurements. An orthorhombic-to-monoclinic phase transition occurs on cooling in (Pr0.55Ca0.45)MnO3 at T approximate to 239 K; at lower temperature charge ordering in the Mn sublattice, coupled with orbital ordering, induces an AFM spin ordering within the monoclinic phase. Cr substitution at the Mn site hinders the structural phase transition, although for the y=0.03 sample small amounts of the monoclinic phase coexist at low temperature with the main phase characterized by an orthorhombic structure. Cr substitution prevents charge ordering, favoring double exchange and hence FM spin ordering within the Mn sublattice. (literal)
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