Temperature dependence of the London penetration depth of YNi 2B2C borocarbids using two-band Ginzburg-Landau theory

ASKERBEYLİ İ.

Acta Physica Slovaca, cilt.53, sa.4, ss.321-327, 2003 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 53 Sayı: 4
  • Basım Tarihi: 2003
  • Dergi Adı: Acta Physica Slovaca
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.321-327
  • Ankara Üniversitesi Adresli: Hayır

Özet

Temperature dependence of London penetration depth of nonmagnetic borocarbides YNi2B2C is studied in the framework two-band Ginzburg-Landau theory. Its temperature dependence is non-linear near T c. The strength of the non-linearity is mainly dependent on the interaction coupling between the order parameters of two separate bands. In addition, the inter-gradient interaction as well as the ratio of effective masses of two separate bands was also found to be important in determining its temperature dependence. The results of the calculations are in good agreement with the experimental data for bulk YNi2B2C.