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1998 | 94 | 3 | 411-414
Article title

Do Van Hove Singularities in Leads Influence Tunneling Current through Quantum Dot?

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EN
Abstracts
EN
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.
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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
  • Institute of Physics, Maria Curie-Skłodowska University, Radziszewskiego 10 A, 20-031 Lublin, Poland
References
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Publication order reference
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bwmeta1.element.bwnjournal-article-appv94z311kz
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