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arXiv 0803.0288cond-mat.supr-con
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正常/重费米子超导结中的电子传输

Electron transmission in normal/heavy-fermion superconductor junctions

M. A. N. Araujo, P. D. Sacramento

摘要:

研究了正常金属(N)与重费米子超导体(HFS)之间的Andreev反射,在HFS的双带模型框架下,建立了两个系统中电子波函数的边界条件.因此,我们表明,在一个简单而明确的方式,在重费米子(HF)金属的质量增强因子不引起阻抗在N/HFS接口,根据先前提出的参数。我们还提出了一个扩展的理论,一个双流体模型的重费米子,可能适用于,例如,CeCoIn_5.

英文摘要:

The Andreev reflection between a normal metal (N) and a heavy-fermion superconductor (HFS) is studied and the boundary conditions for the electron's wave function in the two systems are established in the framework of a two band model for the HFS. Hence we show in a simple and explicit way that the mass enhancement factors in the heavy-fermion (HF) metal do not cause impedance at the N/HFS interface, in accordance with arguments previously presented. We also present an extension of the theory to a two-fluid model for the heavy-fermion, as possibly applicable to, e.g., CeCoIn_5.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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