Thickness effect on the structure and superconductivity of Nd1.2Ba1.8Cu3O7+x epitaxial films (Articolo in rivista)

Type
Label
  • Thickness effect on the structure and superconductivity of Nd1.2Ba1.8Cu3O7+x epitaxial films (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.physc.2007.03.360 (literal)
Alternative label
  • Salluzzo M.; de Luca G.M.; Marre D.; Putti M.; Tropeano M.; di Uccio U.S.; Vaglio R. (2007)
    Thickness effect on the structure and superconductivity of Nd1.2Ba1.8Cu3O7+x epitaxial films
    in Physica. C, Superconductivity (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Salluzzo M.; de Luca G.M.; Marre D.; Putti M.; Tropeano M.; di Uccio U.S.; Vaglio R. (literal)
Pagina inizio
  • 724 (literal)
Pagina fine
  • 725 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Conference: 8th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors Location: Dresden, GERMANY Date: JUL 09-14, 2006. Selected and revised paper. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 460 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Naples Federico 2, INFM, COHERENTIA CNR, I-80125 Naples, Italy; Univ Naples Federico 2, Dipartimento Sci Fis, I-80125 Naples, Italy; Univ Salerno, Dipartimento Sci Fis, I-84081 Baronissi, Italy; Univ Salerno, INFM, COHERENTIA CNR, I-84081 Baronissi, Italy; Univ Genoa, INFM, LAMIA CNR, I-16146 Genoa, Italy; Univ Genoa, Dipartimento Sci Fis, I-16146 Genoa, Italy; Univ Cassino, DiMSAT, I-03043 Cassino, Italy (literal)
Titolo
  • Thickness effect on the structure and superconductivity of Nd1.2Ba1.8Cu3O7+x epitaxial films (literal)
Abstract
  • We have studied the effect of thickness on the structure and superconductivity of Nd1.2Ba1.8Cu3O7+x (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 to nanostructured twinned domains. The second one appears at 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 of T-c and of 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(I)O chains. (c) 2007 Elsevier B.V. All rights reserved. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


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