http://www.cnr.it/ontology/cnr/individuo/prodotto/ID320171
Ferromagnetic Kondo Effect in a Triple Quantum Dot System (Articolo in rivista)
- Type
- Label
- Ferromagnetic Kondo Effect in a Triple Quantum Dot System (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevLett.111.047201 (literal)
- Alternative label
Baruselli, P. P.; Requist, R.; Fabrizio, M.; Tosatti, E. (2013)
Ferromagnetic Kondo Effect in a Triple Quantum Dot System
in Physical review letters (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Baruselli, P. P.; Requist, R.; Fabrizio, M.; Tosatti, E. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- International School for Advanced Studies; CNR IOM; Abdus Salam International Centre for Theoretical Physics (literal)
- Titolo
- Ferromagnetic Kondo Effect in a Triple Quantum Dot System (literal)
- Abstract
- A simple device of three laterally coupled quantum dots, the central one contacted by metal leads, provides a realization of the ferromagnetic Kondo model, which is characterized by interesting properties like a nonanalytic inverted zero-bias anomaly and an extreme sensitivity to a magnetic field. Tuning the gate voltages of the lateral dots allows us to study the transition from a ferromagnetic to antiferromagnetic Kondo effect, a simple case of a Berezinskii-Kosterlitz-Thouless transition. We model the device by three coupled Anderson impurities that we study by numerical renormalization group. We calculate the single-particle spectral function of the central dot, which at zero frequency is proportional to the zero-bias conductance, across the transition, both in the absence and in the presence of a magnetic field. (literal)
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