A generalized two-band model for the superconductivity in MgB2

被引：12
|
作者：
Konsin, P [1 ]
Sorkin, B [1 ]
机构：
[1] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2004年 / 17卷 / 12期
关键词：
D O I：
10.1088/0953-2048/17/12/019
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The free energy of a two-band superconductor is obtained by taking into account all actual electron-phonon and Coulomb interactions. The temperature dependences of the superconducting gaps, the specific heat with its jump at T = T-c (T-c is the critical temperature) are calculated by minimizing the free energy. The theory is applied to the MgB2 superconductor. The T-c isotope effect is estimated and the accordance with the experiment is obtained.
引用
收藏
页码：1472 / 1476
页数：5
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