Study of the electrodynamic response of SmBa2Cu3O7-delta thin films in the microwave region (Contributo in atti di convegno)

Type
Label
  • Study of the electrodynamic response of SmBa2Cu3O7-delta thin films in the microwave region (Contributo in atti di convegno) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1142/S0217979203016868 (literal)
Alternative label
  • Lamura, G; Di Gennaro, E; Andreone, A ; Boffa, M ; Cucolo, AM (2003)
    Study of the electrodynamic response of SmBa2Cu3O7-delta thin films in the microwave region
    in 11th National Congress on Superconductivity (SATT11), Salerno (italy), MAR 19-22, 2002
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Lamura, G; Di Gennaro, E; Andreone, A ; Boffa, M ; Cucolo, AM (literal)
Pagina inizio
  • 942 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 17 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Naples Federico II, INFM, Naples, Italy Univ Naples Federico II, Dipartimento Sci Fisiche, Naples, Italy Univ Salerno, INFM, I-84081 Baronissi, SA, Italy Univ Salerno, Dipartimento Fis, I-84081 Baronissi, SA, Italy (literal)
Titolo
  • Study of the electrodynamic response of SmBa2Cu3O7-delta thin films in the microwave region (literal)
Abstract
  • We present some experimental results on the temperature dependence of the surface resistance R-s and magnetic penetration depth lambda of thin films of SmBa2Cu3O7-delta. The samples, 0.25 mum thick, were grown by a dc sputtering technique on (100)K LaAlO3 single crystal substrates, with critical temperatures ranging between 87 and 88 K. Accurate measurements of the surface impedance Z(S) were performed down to 4 K by means of a dielectrically loaded cavity operating in the microwave region (20 GHz). Both lambda and R-S show a monotonic temperature behavior, with no evidence of low temperature up-turn characteristic of other rare earth based cuprates like GdBa2Cu3O7-delta. At low temperatures, we observed an almost linear behavior of lambda with a slope of similar to0.3 nm/K up to 25 K, as expected in a d-wave pairing scenario. The real part of complex conductivity sigma(1) shows a bump at around 40 K, in agreement with previous reports. (literal)
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