Multiple gap symmetries for the order parameter of cuprate superconductors from penetration depth measurements (Articolo in rivista)

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  • Multiple gap symmetries for the order parameter of cuprate superconductors from penetration depth measurements (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Khasanov, R; Strassle, S; Di Castro, D; Masui, T; Miyasaka, S; Tajima, S; Bussmann-Holder, A; Keller, H (2007)
    Multiple gap symmetries for the order parameter of cuprate superconductors from penetration depth measurements
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Khasanov, R; Strassle, S; Di Castro, D; Masui, T; Miyasaka, S; Tajima, S; Bussmann-Holder, A; Keller, H (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 99 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; Univ Roma La Sapienza, INFM, CNR, CRS Coherentia, I-00185 Rome, Italy; Osaka Univ, Dept Phys, Osaka 5600043, Japan; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany (literal)
Titolo
  • Multiple gap symmetries for the order parameter of cuprate superconductors from penetration depth measurements (literal)
Abstract
  • The temperature dependence of the London penetration depth lambda was measured for an untwinned single crystal of YBa2Cu3O7-delta along the three principal crystallographic directions (a, b, and c). Both in-plane components (lambda(-2)(a) and lambda(-2)(b)) show an inflection point in their temperature dependence which is absent in the component along the c direction (lambda(-2)(c)). The data provide convincing evidence that the in-plane superconducting order parameter is a mixture of (s+d)-wave symmetry whereas it is mainly s wave along the c direction. In conjunction with previous results it is concluded that coupled s+d-order parameters are universal and intrinsic to cuprate superconductors. (literal)
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