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- Title
Kondo Impurity between Superconducting and Metallic Reservoir: The Flow Equation Approach.
- Authors
BARAŃSKA, M.; ZIENKIEWICZ, T.
- Abstract
Correlated quantum impurity embedded in a metallic host can form the many-body Kondo state with itinerant electrons due to the effective antiferromagnetic coupling. Such effect is manifested spectroscopically by a narrow Abrikosov-Suhl peak appearing at the Fermi level below a characteristic temperature TK (Kondo temperature). We analyze nanoscopic heterojunction where the correlated quantum impurity is coupled to superconducting reservoir. We study influence of the induced on-dot pairing on the exchange interaction adopting the continuous unitary transformation.
- Subjects
KONDO effect; UNITARY transformations; MANY-body problem; FERMI level; DEBYE temperatures; RESERVOIRS; EQUATIONS
- Publication
Acta Physica Polonica: A, 2019, Vol 136, Issue 4, p657
- ISSN
0587-4246
- Publication type
Article
- DOI
10.12693/APhysPolA.136.657