Fluctuations of the order parameter's phase in layered superconductors

Cakiroglu O.

JOURNAL OF SUPERCONDUCTIVITY, cilt.13, sa.4, ss.639-644, 2000 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13 Konu: 4
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1023/a:1007893405504
  • Sayfa Sayıları: ss.639-644


The influence of the quantum fluctuations of the order parameter's phase on the critical temperature T-c is studied for a Josephson coupled layered superconductor. Two characteristic critical temperatures exist for a system, namely the superconducting critical temperature T-c((2)) for a single layer estimated by the mean-field theory and the transition temperature for the outset or the superconducting phase coherence T*(c). The true critical temperature T-c is shown to vary inside the intervals T*(c) less than or equal to T-c less than or equal to T-c((2)). For a strong quantum phase fluctuation limit, the superconducting layers become decoupled.