Electron transmission in normal/heavy-fermion superconductor junctions

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.

6 pages, 2 figures. Slightly expanded version, closer to that published in Phys Rev B

References in corpus (9)

• Anomalous NMR Magnetic Shifts in CeCoIn_5
• Scaling in the Emergent Behavior of Heavy Electron Materials
• Unpaired Electrons in the Heavy-Fermion Superconductor CeCoIn_{5}
• Interacting Antiferromagnetic Droplets in Quantum Critical CeCoIn_5
• Magnetic structure of Cd-doped CeCoIn5
• Point-Contact Spectroscopy of the Heavy-Fermion Superconductor CeCoIn${}_5$
• Local Moment Formation in the Periodic Anderson Model with Superconducting Correlations
• Coexistence of antiferromagnetism and superconductivity in the Anderson lattice
• Electron transmission between normal and heavy electron metallic phases in a Kondo lattice system

Cited by in corpus (7)

• Quantum waveguide theory of Andreev reflection in multiband superconductors: the case of Fe-pnictides
• Andreev reflection and order parameter symmetry in heavy-fermion superconductors: the case of CeCoIn${}_5$
• Superfluidity near phase separation in Bose-Fermi mixtures
• Two-channel point-contact tunneling theory of superconductors
• Conductance spectroscopy of a correlated superconductor in a magnetic field in the Pauli limit: Evidence for strong correlations
• Andreev spectroscopy of Majorana states in topological superconductors with multipocket Fermi surfaces
• Andreev reflection between a normal metal and the FFLO superconductor II: a self-consistent approach