Influence of a single disorder parameter on the conduction mechanisms in manganite thin films (Articolo in rivista)

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Label
  • Influence of a single disorder parameter on the conduction mechanisms in manganite thin films (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.76.012404 (literal)
Alternative label
  • P.Orgiani; C.Adamo; C.Barone; A.Galdi; A.Yu.Petrov; D.G.Schlom; L.Maritato (2007)
    Influence of a single disorder parameter on the conduction mechanisms in manganite thin films
    in Physical review. B, Condensed matter and materials physics; American Physical Society (APS), College Pk (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • P.Orgiani; C.Adamo; C.Barone; A.Galdi; A.Yu.Petrov; D.G.Schlom; L.Maritato (literal)
Pagina inizio
  • 012404-1 (literal)
Pagina fine
  • 012404-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://prb.aps.org/abstract/PRB/v76/i1/e012404 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 76 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Salerno, Dipartimento Fis, I-84081 Baronissi, Italy Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA Univ Salerno, Dipartimento Matemat & Informat, I-84081 Baronissi, Italy (literal)
Titolo
  • Influence of a single disorder parameter on the conduction mechanisms in manganite thin films (literal)
Abstract
  • We have systematically studied the transport properties of colossal magnetoresistance (CMR) manganite films at temperatures of up to 550 K by changing parameters influencing the amount of disorder in the system. Independent of the type and amount of disorder, the resistivity can always be described using a T-alpha-power law in the ferromagnetic-metallic phase and a thermally activated behavior in the polaronic-insulating phase. A linear correlation between both the value of the alpha coefficient and the polaron formation energies E-g as a function of the metal-insulator transition temperature T-MI has been found. Our results indicate the possibility of describing the transport properties in CMR manganites in terms of a single disorder parameter. (literal)
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