Quantum dot in the Kondo regime coupled to p-wave superconductors

Tomosuke Aono; Anatoly Golub; Yshai Avishai

doi:10.1103/PhysRevB.68.045312

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Quantum dot in the Kondo regime coupled to p-wave superconductors

Tomosuke Aono, Anatoly Golub, Yshai Avishai

DOI 10.1103/PhysRevB.68.045312 · Physical Review B

T1

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Abstract

The physics of junctions containing p-wave superconducting and normal leads weakly coupled to an Anderson impurity in the Kondo regime is elucidated. For p-wave (unlike s wave) superconducting leads, midgap surface states play an important role in the tunneling process and help the formation of the Kondo resonance. The current, shot-noise power, and Fano factor are calculated and displayed as functions of the applied voltage V in the subgap region eV<Δ (the superconducting gap). In addition, the Josephson current for a quantum dot in the Kondo regime weakly coupled on both sides to p-wave superconductors is computed as function of temperature and phase. The peculiar differences between the cases of s-wave and p-wave superconducting leads are pointed out.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown