1998/07/27 by Kicheon Kang · 50 citations
Engineering · Physics and Astronomy · #Andreev reflection #Condensed matter physics #Conductance #Coulomb #Coulomb blockade #Electrical resistivity and conductivity #Electron #Kondo effect #Molecular Junctions and Nanostructures #Physics #Quantum and electron transport phenomena #Quantum dot #Quantum mechanics #Quantum tunnelling #Resonance (particle physics) #Semiconductor Quantum Structures and Devices #Superconductivity #Transistor #Voltage #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.58.9641
published in Physical review. B, Condensed matter 58(15), 9641-9643 (American Physical Society) · 3 pages Revtex, 4 Postscript figures, accepted for publication in Phys. Rev. B
arxiv created 1998/07/27 · openalex publication_date 1998/10/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study resonant tunneling through an interacting quantum dot coupled to normal metallic and superconducting leads. We show that large Coulomb interaction gives rise to interesting effects in Andreev transport. Adopting an exact relation for the Green's function, we find that at zero temperature, the linear response conductance is enhanced due to Kondo-Andreev resonance in the Kondo limit, while it is suppressed in the empty site limit. In the Coulomb blockaded region, on the other hand, the conductance is reduced more than the corresponding conductance with normal leads because large charging energy suppresses Andreev reflection.