Pressure and Doping Effects on Critical Temperature in MgB_2 and Nonmagnetic Borocarbides within Two-Band Eliashberg Theory
Pressure and Doping Effects on Critical Temperature in MgB_2 and Nonmagnetic Borocarbides within Two-Band Eliashberg Theory
摘要
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.
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