Electron transmission in normal metal/heavy-fermion superconductor junctions: A two-band model

M. A. N. Araújo; P. D. Sacramento

doi:10.1103/PhysRevB.77.134519

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Electron transmission in normal metal/heavy-fermion superconductor junctions: A two-band model

M. A. N. Araújo, P. D. Sacramento

DOI 10.1103/PhysRevB.77.134519 · Physical Review B

T1

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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, in a simple and explicit way, we show that the mass enhancement factors in the heavy-fermion metal do not cause impedance at the N/HFS interface, which is in accordance with arguments previously presented. We also present an extension of the theory to a two-fluid model for the heavy fermion, which is possibly applicable to, e.g., CeCoIn5.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
CeCoIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown