Journal
Article title
Authors
Title variants
Languages of publication
Abstracts
Using the Landauer type formula for the current through quantum dot we have studied the influence of the singularities in the density of states in leads on the differential conductance of the system and answered affirmatively the above question. The presence of Van Hove singularities in the leads may induce an additional structure on the conductance vs. voltage curve. The dot itself has been described by the single impurity Anderson model with a very strong "on-dot" Coulomb repulsion. We also simulate the effect of electron-phonon interaction in the dot by allowing for the fluctuations of the "impurity" energy level.
Discipline
- 72.15.Qm: Scattering mechanisms and Kondo effect(see also 75.20.Hr Local moments in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions in magnetic properties and materials)
- 71.27.+a: Strongly correlated electron systems; heavy fermions
- 73.40.Gk: Tunneling(for tunneling in quantum Hall effects, see 73.43.Jn)
Journal
Year
Volume
Issue
Pages
411-414
Physical description
Dates
published
1998-09
Contributors
author
- Institute of Physics, Maria Curie-Skłodowska University, Radziszewskiego 10 A, 20-031 Lublin, Poland
author
- Institute of Physics, Maria Curie-Skłodowska University, Radziszewskiego 10 A, 20-031 Lublin, Poland
author
- Institute of Physics, Maria Curie-Skłodowska University, Radziszewskiego 10 A, 20-031 Lublin, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv94z311kz