Interlayer coupling in ultrathin high TC artificial structures (Articolo in rivista)

Type
Label
  • Interlayer coupling in ultrathin high TC artificial structures (Articolo in rivista) (literal)
Anno
  • 2001-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.64.020506 (literal)
Alternative label
  • G.Balestrino, S.Lavanga, P.G.Medaglia, P.Orgiani, A.Tebano (2001)
    Interlayer coupling in ultrathin high TC artificial structures
    in Physical review. B, Condensed matter and materials physics; APS, American physical society, College Park, MD (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G.Balestrino, S.Lavanga, P.G.Medaglia, P.Orgiani, A.Tebano (literal)
Pagina inizio
  • 020506-1 (literal)
Pagina fine
  • 020506-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://prb.aps.org/abstract/PRB/v64/i2/e020506 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 64 (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 Roma Tor Vergata, INFM, Dipartimento Sci & Technol Fis & Energet, I-00133 Rome, Italy (literal)
Titolo
  • Interlayer coupling in ultrathin high TC artificial structures (literal)
Abstract
  • Artificially layered superlattices were grown, by stacking in sequence ultrathin epitaxial layers of (Ba(0.9),Nd(0.1))CuO(2+x) and CaCuO(2). Starting from [(Ba(0.9),Nd(0.1))CuO(2+x)](m)/[CaCuO(2)](2) superlattices with m = 2, the thickness of the Ba-Cu-O block, separating adjacent Ca-Cu-O superconducting blocks, was gradually increased up to m = 10. We found that, increasing m, superlattices show a moderate decrease of the critical temperature and a sizeable increase of the anisotropy. In the superlattices with m greater than or equal to4 the superconducting layers are completely decoupled, showing, relative to the m = 2 superlattice, a decrease of the transition temperature less than 10% and an increase of the anisotropy by a factor similar to2-3. Superconductivity at 55 K was found in ultrathin films only consisting of one (CaCuO(2))(2) layer sandwiched between five (Ba(0.9),Nd(0.1))CuO(2+x) layers, demonstrating that the interlayer coupling in m greater than or equal to4 superlattices is negligible. (literal)
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