Thermoelectromotive force in Bi2Sr2Ca2Cu4O11 bismuth-based high-temperature superconductor

Ragimov S. S., Askerzade İ.

TECHNICAL PHYSICS, cilt.55, sa.10, ss.1538-1539, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 55 Sayı: 10
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1134/s1063784210100245
  • Dergi Adı: TECHNICAL PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1538-1539
  • Ankara Üniversitesi Adresli: Evet

Özet

The temperature dependence of the thermoemf in Bi2Sr2Ca2Cu4O11 bismuth-based high-temperature superconductors is studied. The thermoemf is positive at high temperatures (T > 300 K) and negative at low temperatures. As the temperature decreases, the thermoemf reaches a maximum slightly above T (c) and then sharply drops to zero. The results can be explained in the framework of the two-band theory with a linear temperature term.