Temperature dependence of some superconducting state parameters of a bulk MgB2 in two-band Ginzburg-Landau theory

Askerzade İ.

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, cilt.390, sa.4, ss.281-285, 2003 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 390 Sayı: 4
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1016/s0921-4534(03)01090-6
  • Dergi Adı: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.281-285
  • Anahtar Kelimeler: magnesium diboride, two-band superconductivity, Ginzburg-Landau theory, FIELD, HEAT
  • Ankara Üniversitesi Adresli: Evet

Özet

Temperature dependences of the coherent length xi(T), London penetration depth lambda(T), critical velocity of Cooper pair v(c)(T), critical current density j(c)(T) and Ginzburg-Landau (GL) parameter kappa(T) = lambda(T)/xi(T) for the bulk superconducting magnesium diboride, MgB2, are studied in the vicinity of T-c by using a two-band GL theory. The results of the calculations are in good agreement with experimental data for bulk MgB2. Comparison of obtained results with single-band GL theory are presented. (C) 2003 Elsevier Science B.V. All rights reserved.