Current dependence of pinning energy and flux dynamics in high temperature superconductors (Articolo in rivista)

Type
Label
  • Current dependence of pinning energy and flux dynamics in high temperature superconductors (Articolo in rivista) (literal)
Anno
  • 1997-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1109/77.620701 (literal)
Alternative label
  • Attanasio, C. and Coccorese, C. and Maritato, L. and Salluzzo, M. and Salvato, M. and Prischepa, S. L. and Kushnir, V. N. and Varilci, A. (1997)
    Current dependence of pinning energy and flux dynamics in high temperature superconductors
    in IEEE transactions on applied superconductivity (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Attanasio, C. and Coccorese, C. and Maritato, L. and Salluzzo, M. and Salvato, M. and Prischepa, S. L. and Kushnir, V. N. and Varilci, A. (literal)
Pagina inizio
  • 1173 (literal)
Pagina fine
  • 1176 (literal)
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  • 7 (literal)
Rivista
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  • 4 (literal)
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  • 2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Google Scholar (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • C. Attanasio, C. Coccorese, L. Maritato, M. Salluzzo, M. Salvato Dipartimento di Fisica and Unit& INFM, Universitk di Salerno, 1-84081, Baronissi (Sa), Italy S.L. Prischepa, V.N. Kushnir State University of Informatics and RadioElectronics, 220600 Minsk, Belarus A. Varilci Fizik Bolumu, Karadeniz Teknik Universitesi, 61080, Trabzon, Turkey (literal)
Titolo
  • Current dependence of pinning energy and flux dynamics in high temperature superconductors (literal)
Abstract
  • We show that the usually observed logarithmic U(J) dependence at large magnetic fields is related to the increasing number of free flowing vortices distributed in the weak pinning centers, with respect to the vortices in the strong pinning centers in the flux creep regime. Increasing the flux density (i.e. increasing the external magnetic field) the flux distribution on the pinning centers has a larger dispersion (sigma u much greater than k(B)T) and this leads to a logarithmic U(J) behavior. The comparison with the experimental data seems to prove this idea. (literal)
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