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

作     者：I.N.Askerzade 

作者机构：Computer Engineering Department of Engineering Faculty of Ankara University Institute of Physics Azerbaijan National Academy of Sciences 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2010年第53卷第6期

页      面：1181-1184页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

主　　题：Jtwo-band superconductivity Eliashberg theory magnesium diboride nonmagnetic borocarbides 

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.