Investigations of even-order harmonic susceptibilities of MgB2 superconductors using critical state approach

Gencer A., Guclu N., Yilmaz H., Kilic A., Askerzade İ., Aksu E., ...Daha Fazla

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, cilt.13, sa.2, ss.3514-3517, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13 Sayı: 2
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1109/tasc.2003.812383
  • Dergi Adı: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3514-3517
  • Anahtar Kelimeler: field dependent critical current density J(c), flux penetration, harmonic susceptibilities, MgB2, simplified Kim model, HIGH-TEMPERATURE SUPERCONDUCTORS, AC SUSCEPTIBILITIES, MAGNETIZATION, FIELD, CURRENTS, DISKS
  • Ankara Üniversitesi Adresli: Evet

Özet

Even-order harmonic susceptibilities chi(n) = chi(n)' + ichi(n)" (n is even) of MgB2 were measured at temperatures between n 15 and 45 K with small ac and dc field combinations. The simplified Vim model was employed to account for the main features of the experiments by use of a fitting equation H-p = H-alpha (1 - t)(beta) for temperature scaling. The experiments are in qualitative agreement with theory.