Nonthermal broadening in the conductance of double quantum dot structures

L. Oroszlány, A. Kormányos, J. Koltai, J. Cserti, C. J. Lambert

Research output: Article

16 Citations (Scopus)

Abstract

We study the transport properties of a double quantum dot (DQD) molecule at zero and at finite temperature. The properties of the zero-temperature conductance depend on whether the level attraction between the symmetric and antisymmetric states of the DQD, produced by the coupling to the leads, exceeds or not the interdot tunneling. For finite temperature, we find a remarkable nonthermal broadening effect of the conductance resonance when the energy levels of the individual dots are detuned.

Original languageEnglish
Article number045318
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number4
DOIs
Publication statusPublished - júl. 17 2007

Fingerprint

Semiconductor quantum dots
quantum dots
Transport properties
Temperature
Electron energy levels
attraction
temperature
transport properties
energy levels
Molecules
molecules

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Nonthermal broadening in the conductance of double quantum dot structures. / Oroszlány, L.; Kormányos, A.; Koltai, J.; Cserti, J.; Lambert, C. J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 76, No. 4, 045318, 17.07.2007.

Research output: Article

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