http://www.cnr.it/ontology/cnr/individuo/prodotto/ID2617
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)
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- 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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