Pressure and Doping Effects on Critical Temperature in MgB2 and Nonmagnetic Borocarbides within Two-Band Eliashberg Theory

Askerzade İ.

COMMUNICATIONS IN THEORETICAL PHYSICS, cilt.53, sa.6, ss.1181-1184, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 53 Sayı: 6
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1088/0253-6102/53/6/38
  • Dergi Adı: COMMUNICATIONS IN THEORETICAL PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1181-1184
  • Anahtar Kelimeler: two-band superconductivity, Eliashberg theory, magnesium diboride, nonmagnetic borocarbides, EXPERIMENTAL T-C, SUPERCONDUCTIVITY, TRANSITION
  • Ankara Üniversitesi Adresli: Evet

Özet

Critical temperature of Mg1-xAlxB2, MgB2-xCx are calculated using two-band Eliashberg theory in intermediate e-ph coupling. Analytical calculations are conducted for different values of doping parameters x in this compounds. Pressure effects on critical temperature in MgB2 and nonmagnetic borocarbide YNi2B2C are also investigated. Results is compared with available experimental data and good agreement is achieved.