http://www.cnr.it/ontology/cnr/individuo/prodotto/ID184202
Superconductivity and interlayer coupling in ultrathin artificially layered cuprates (Articolo in rivista)
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- Label
- Superconductivity and interlayer coupling in ultrathin artificially layered cuprates (Articolo in rivista) (literal)
- Anno
- 2002-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/S0921-4534(02)00802-X (literal)
- Alternative label
S.Lavanga, C.Aruta, G.Balestrino, P.Orgiani, P.G.Medaglia, A.Tebano (2002)
Superconductivity and interlayer coupling in ultrathin artificially layered cuprates
in Physica. C, Superconductivity (Print); ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- S.Lavanga, C.Aruta, G.Balestrino, P.Orgiani, P.G.Medaglia, A.Tebano (literal)
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- http://www.sciencedirect.com/science/article/pii/S092145340200802X (literal)
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- Univ Roma Tor Vergata, INFM, Dip Sci & Tecnol Fisiche & Energet, I-00133 Rome, Italy (literal)
- Titolo
- Superconductivity and interlayer coupling in ultrathin artificially layered cuprates (literal)
- Abstract
- A structural requirement for high-T(c) (FITS) cuprates is the simultaneous presence in a layered structure of two different functional blocks, individually non-superconducting: the charge reservoir (CR) block and the infinite layer (IL) block. Artificially layered 2 x m superlattices were grown, by pulsed laser deposition, stacking epitaxially m layers of (Ba(0.9)Nd(0.1))CuO(2+delta) and two layers of CaCuO(2). Starting from superlattices with m = 2, the thickness of CR block, namely the Ba-Cu-O block. which separates adjacent Ca-Cu-O IL blocks. was gradually increased up to m = 10. In the superlattices with m > 4 the superconducting layers are completely decoupled. showing. relative to the m = 2 superlattice. a negligible decrease of the transition temperature and a strong increase of the anisotropy. Superconductivity at 55 K was found in both the ultrathin films, only consisting of two CR blocks sandwiching a (CaCUO(2))(2) layer, and the superlattices with thick CR blocks. demonstrating that the interlayer coupling in Such heterostructures is unimportant. Moreover it has been shown that a single CaCuO(2) layer is still superconducting. (literal)
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