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Type: Artigo de evento
Title: Specific Heat At High Temperature And Magnetic Measurements In Nd 0.5sr0.5mno3 And R0.5ca 0.5mno3 (r = Nd, Sm, Dy And Ho) Samples
Author: Lopez J.
De Lima O.F.
Abstract: We have made a magnetic and specific heat characterization of five manganese samples. Ferromagnetic, antiferromagnetic and charge ordering transitions in our samples agree with previous reports. Each specific heat curve was successfully fitted at high temperatures by an Einstein model with three optical phonon modes. Close to the charge ordering and ferromagnetic transition temperatures the specific heat curves showed peaks superposed to the characteristic response of the lattice oscillations. © 2003 Elsevier B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/j.jallcom.2003.09.053
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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