http://www.cnr.it/ontology/cnr/individuo/prodotto/ID3581
Two-level physics in a model metallic break junction (Articolo in rivista)
- Type
- Label
- Two-level physics in a model metallic break junction (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevB.78.155418 (literal)
- Alternative label
Lucignano, P (1)(2); Santoro, GE (1)(3); Fabrizio, M (1)(3); Tosatti, E (1)(3) (2008)
Two-level physics in a model metallic break junction
in Physical review. B, Condensed matter and materials physics (Online)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Lucignano, P (1)(2); Santoro, GE (1)(3); Fabrizio, M (1)(3); Tosatti, E (1)(3) (literal)
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- ISI Web of Science (WOS) (literal)
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- 1 SISSA, CNR-INFM Democritos National Simulation Center, Via Beirut 2-4, 34014 Trieste, Italy
2 Coherentia CNR-INFM, Dipartimento di Scienze Fisiche, Università di Napoli, Federico II, Monte S.Angelo-via Cintia, I-80126 Napoli, Italy
3 International Centre for Theoretical Physics (ICTP), P.O. Box 586, I-34014 Trieste, Italy (literal)
- Titolo
- Two-level physics in a model metallic break junction (literal)
- Abstract
- We consider a model inspired by a metal break junction hypothetically caught at its breaking point, where the nonadiabatic center-of-mass motion of the bridging atom can be treated as a two-level system. By means of numerical renormalization group (NRG) we calculate the influence of the two-level system on the ballistic conductance across the bridge atom. The results are shown to be fully consistent with a conformal field theory treatment. We find that the conductance calculated by coupling Fermi-liquid theory to our NRG is always finite and fractional at zero temperature but drops quite fast as the temperature increases. (literal)
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