Fluctuation conductivity in two-band superconductor SmFeAsO0.8F0.2

Askerzade İ., Askerbeyli R. T. T.

MATERIALS SCIENCE-POLAND, cilt.33, sa.3, ss.644-648, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 33 Sayı: 3
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1515/msp-2015-0060
  • Dergi Adı: MATERIALS SCIENCE-POLAND
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.644-648
  • Anahtar Kelimeler: fluctuation, conductivity, Ginzburg-Landau theory, two-band superconductivity, MAGNETIC-FIELD, HEAT JUMP
  • Ankara Üniversitesi Adresli: Evet

Özet

In this study we have calculated the fluctuation conductivity near critical temperature of SmFeAsO0.8F0.2 superconductor using two-band Ginzburg-Landau theory. It was illustrated that in the absence of external magnetic field, the two-band model reduced to a single effective band theory with modified temperature dependences. The calculations revealed three-dimensional character of fluctuations of conductivity in the new Fe-based superconductor SmFeAsO0.8F0.2. It has been shown that such a model is in good agreement with experimental data for this compound.