Kosterlitz-Thouless behavior in layered superconductors: The role of the vortex core energy (Articolo in rivista)

Type
Label
  • Kosterlitz-Thouless behavior in layered superconductors: The role of the vortex core energy (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.98.117008 (literal)
Alternative label
  • Benfatto, L (1,2); Castellani, C (2); Giamarchi, T (3) (2007)
    Kosterlitz-Thouless behavior in layered superconductors: The role of the vortex core energy
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Benfatto, L (1,2); Castellani, C (2); Giamarchi, T (3) (literal)
Pagina inizio
  • 117008 (literal)
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  • 98 (literal)
Rivista
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  • 4 (literal)
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  • 11 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) Ctr Studi & Ric Enrico Fermi, I-00184 Rome, Italy; 2) CNR, SMC, INFM, I-00185 Rome, Italy; Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy; 3) Univ Geneva, DPMC, MaNEP, CH-1211 Geneva 4, Switzerland (literal)
Titolo
  • Kosterlitz-Thouless behavior in layered superconductors: The role of the vortex core energy (literal)
Abstract
  • In layered superconductors (SC) with small interlayer Josephson coupling vortex-antivortex phase fluctuations characteristic of quasi two-dimensional (2D) Kosterlitz-Thouless behavior are expected to be observable at some energy scale T-d. While in the 2D case T-d is uniquely identified by the KT temperature T-KT where the universal value of the superfluid density is reached, we show that in a generic anisotropic 3D system T-d is controlled by the vortex-core energy, and can be significantly larger than the 2D scale T-KT. These results are discussed in relation to recent experiments in cuprates, which represent a typical experimental realization of layered anisotropic SC. (literal)
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