Specific heat jump of quasi-two-dimensional superconductors in BCS approximation: Application to MgB2

Askerzade İ.

MODERN PHYSICS LETTERS B, cilt.17, sa.1, ss.11-18, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 17 Sayı: 1
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1142/s0217984903004841
  • Dergi Adı: MODERN PHYSICS LETTERS B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.11-18
  • Anahtar Kelimeler: specific heat, layered superconductor, magnesium diboride, BCS theory, LAYERED SUPERCONDUCTOR, CRITICAL-TEMPERATURE
  • Ankara Üniversitesi Adresli: Evet

Özet

An analytical result for the renormalization of the jump of the heat capacity (C-S - C-N)/C-N through the anisotropy of the order parameter is derived in the framework of the simple quasi-two-dimensional BCS model. The graph of (C-S - C-N)/N-C versus the anisotropy of the order parameter allows for a direct determination of the gap anisotropy in MgB2 using available experimantal data.