Andreev scattering and the Kondo effect
Aashish A. Clerk, Vinay Ambegaokar, Selman Hershfield
DOI 10.1103/PhysRevB.61.3555 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The properties of an infinite-U Anderson impurity coupled to both normal and superconducting metals is studied using a generalization of the noncrossing approximation which incorporates multiple Andreev reflection. Both the cases of a quantum dot and a point contact containing an impurity are considered. We find that the magnitude of the Kondo resonance is altered, and that structure develops at energies corresponding to the superconducting gap. This leads to observable changes in the zero-bias conductance. We also find that magnetic and nonmagnetic Kondo effects respond in opposite manners to Andreev reflection.
Similar papers
Interplay of Kondo and superconducting correlations in the nonequilibrium Andreev transport through a quantum dot
similarity 0.90Yasuhiro Yamada et al.
Source status unknown — claims are unverified
Kondo Universal Scaling for a Quantum Dot Coupled to Superconducting Leads
similarity 0.89C. Buizert et al.
Source status unknown — claims are unverified
Tunneling resonances and Andreev reflection in transport of electrons through a ferromagnetic metal/quantum dot/superconductor system
similarity 0.89Jin-Fu Feng & Shi-Jie Xiong
Source status unknown — claims are unverified
Electron transport through strongly interacting quantum dot coupled to normal metal and superconductor
similarity 0.89M. Krawiec & K. I. Wysokinski · 2003 · arXiv:cond-mat/0311445
Source status unknown — claims are unverified
Kondo effect in Normal-Superconductor Quantum Dots
similarity 0.88J. C. Cuevas et al. · 2000 · arXiv:cond-mat/0009112
Source status unknown — claims are unverified
Kondo impurity at the edge of a superconducting wire
similarity 0.88Parameshwar R. Pasnoori et al.
Source status unknown — claims are unverified