Phonon-assisted tunneling through quantum dot stacks

C Gnodtke, G Kiesslich, E Scholl, Andreas Wacker

Research output: Contribution to journalArticlepeer-review

Abstract

The impact of electron-phonon interaction on the coherent transport through a quantum dot stack is investigated using the nonequilibrium Green's function technique. While the main resonance is due to the alignment of the single dot levels, satellite peaks occur due to resonances with phonon replica of the bare levels. This effect is analyzed in detail and we show that the inclusion of nondiagonal self-energies leads to a significant reduction of the induced current, which is interpreted as an interference effect.
Original languageEnglish
Pages (from-to)115338-1-115338-7
JournalPhysical Review B (Condensed Matter and Materials Physics)
Volume73
Issue number11
DOIs
Publication statusPublished - 2006

Subject classification (UKÄ)

  • Condensed Matter Physics

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