Thickness effect on the structure and superconductivity of Nd1.2Ba1.8Cu3Oz epitaxial films (Articolo in rivista)

Type
Label
  • Thickness effect on the structure and superconductivity of Nd1.2Ba1.8Cu3Oz epitaxial films (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.72.134521 (literal)
Alternative label
  • M. Salluzzo; G. M. de Luca; D. Marrè; M. Putti; M. Tropeano; U. Scotti di Uccio; R. Vaglio (2005)
    Thickness effect on the structure and superconductivity of Nd1.2Ba1.8Cu3Oz epitaxial 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
  • M. Salluzzo; G. M. de Luca; D. Marrè; M. Putti; M. Tropeano; U. Scotti di Uccio; R. Vaglio (literal)
Pagina inizio
  • 134521-1 (literal)
Pagina fine
  • 134521-12 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.aps.org/doi/10.1103/PhysRevB.72.134521 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 72 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 13 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Google Scholar (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 COHERENTIA CNR-INFM and Dipartimento di Scienze Fisiche, Università di Napoli \"Federico II\" Piazzale Tecchio 80, I-80125 Napoli, Italy 2 COHERENTIA CNR-INFM and Dipartimento di Scienze Fisiche, Università di Salerno, Via S. Allende, I-84081 Salerno, Italy 3 LAMIA CNR-INFM and Dipartimento di Scienze Fisiche, Università di Genova, Via Dodecaneso 33, I-16146 Genova, Italy 4 DiMSAT, Università di Cassino, Via di Biasio 43, I-03043 Cassino, (literal)
Titolo
  • Thickness effect on the structure and superconductivity of Nd1.2Ba1.8Cu3Oz epitaxial films (literal)
Abstract
  • We have studied the effect of thickness on the structure and superconductivity of Nd1.2Ba1.8Cu3Oz (NdBCO) epitaxial films deposited on SrTiO3 (100) substrates. High-quality NdBCO films were deposited by high oxygen pressure sputtering. The samples have been carefully characterized by transport measurements and x-ray diffraction using conventional and synchrotron radiation sources. Two structural transformations are observed. The first one is a crossover from the orthorhombic and twinned structure, typical of thick samples, to a pseudotetragonal phase at thickness lower than 60 unit cells. The pseudotetragonal phase exhibits peculiar x-ray diffuse scattering around the Bragg reflections, associated with nanostructured twinned domains. The second one appears at a thickness lower than 20 unit cells and is assigned to a pseudotetragonal-tetragonal transition. The transport properties are not modified at the first crossover, while a substantial decrease in Tc and in the number of holes is observed at the pseudotetragonal-tetragonal transformation. Our results suggest that the structural rearrangement and the transport properties are explained by the ordering of Cu(1)O chains. A simple model, able to explain the experimental results and capturing the essential features of the Cu(1)O chains nucleation process in the R1+xBa2-xCu3O7-d (R=Y and rare-earth elements) compounds, is presented. (literal)
Editore
Prodotto di
Autore CNR

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Editore di
data.CNR.it