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arXiv · 0803.0288

Electron transmission in normal/heavy-fermion superconductor junctions

M. A. N. Araujo·P. D. Sacramento
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Abstract

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.

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M. A. N. Araujo, P. D. Sacramento. 2008-05-01. Electron transmission in normal/heavy-fermion superconductor junctions. https://doi.org/10.1103/physrevb.77.134519

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