| 强交换场中无隙超导电性的Eliashberg方程研究 |
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| 引用本文： | 雷啸霖.强交换场中无隙超导电性的Eliashberg方程研究[J].物理学报,1984,33(2):266-272. |
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| 作者姓名： | 雷啸霖 |
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| 作者单位： | 中国科学院上海冶金研究所 |
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| 摘 要： | 本文研究强交换场中线性化的Eliashberg能隙方程。采用一个叠代方法考虑了能隙函数φ(ω)对±ω的不对称性。在叠代的最低阶给出了近似的解。所得的结果表明:对中等耦合强度以上(λ≥0.5)的电声子系统,能隙函数的不对称效应会显著影响临界交换场的数值。
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| 收稿时间： | 1982-11-30 |
AN INVESTIGATION ON THE GAPLESS SUPERCONDUCTIVITY IN STRONG EXCHANGE FIELDS USING ELIASHBERG THEORY |
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| LEI XIAO-LIN.AN INVESTIGATION ON THE GAPLESS SUPERCONDUCTIVITY IN STRONG EXCHANGE FIELDS USING ELIASHBERG THEORY[J].Acta Physica Sinica,1984,33(2):266-272. |
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| Authors: | LEI XIAO-LIN |
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| Abstract: | The linearized Eliashberg equations for a superconductive system in strong exchange fields have been investigated. An iteration procedure has been used for including the asymmetry of the gap function φ(ω) with respect to ±ω and an approximate solu-tion has been obtained in the lowest order of the iteration equation. The results show that the asymmetry in the gap function can considerably change the critical exchange field as a function of temperature in moderate or stronger electron-phonon coupling (λ≥ 0.5) systems. |
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