http://www.cnr.it/ontology/cnr/individuo/prodotto/ID2490
Anisotropic gap of superconducting CaC6: A first-principles density functional calculation (Articolo in rivista)
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- Label
- Anisotropic gap of superconducting CaC6: A first-principles density functional calculation (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.75.020511 (literal)
- Alternative label
Sanna, A; Profeta, G; Floris, A; Marini, A; Gross, EKU; Massidda, S (2007)
Anisotropic gap of superconducting CaC6: A first-principles density functional calculation
in Physical review. B, Condensed matter and materials physics
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Sanna, A; Profeta, G; Floris, A; Marini, A; Gross, EKU; Massidda, S (literal)
- Pagina inizio
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- http://prb.aps.org/abstract/PRB/v75/i2/e020511 (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Univ Cagliari, SLACS, INFM, CNR,Sardinian Lab Computat Mat Sci, I-09124 Cagliari, Italy; Univ Cagliari, Dipartimento Sci Fis, I-09124 Cagliari, Italy; Free Univ Berlin, Inst Theoret Phys, D-14195 Berlin, Germany; Univ Roma Tor Vergata, Dept Phys, I-00173 Rome, Italy (literal)
- Titolo
- Anisotropic gap of superconducting CaC6: A first-principles density functional calculation (literal)
- Abstract
- We report first-principles calculations of the superconducting properties of CaC6, obtained within the density functional theory of superconductivity. We find a moderately anisotropic gap which is larger on the Fermi surface sheet with interlayer and Ca character compared with isotropic calculations. Our calculated anisotropy improves the agreement with specific heat experiments and is consistent with recent tunneling experiments. In contrast to MgB2, we do not find multigap superconductivity but, instead, a continuous spread of gap values. (literal)
- We report first-principles calculations of the superconducting properties of CaC6, obtained within the density functional theory of superconductivity. We find a moderately anisotropic gap which is larger on the Fermi surface sheet with interlayer and Ca character compared with isotropic calculations. Our calculated anisotropy improves the agreement with specific heat experiments and is consistent with recent tunneling experiments. In contrast to MgB2, we do not find multigap superconductivity but, instead, a continuous spread of gap values. (literal)
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