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arXiv · 0707.2892

Electron Pair Resonance in the Coulomb Blockade

Eran Sela·H. S. Sim·Yuval Oreg·M. E. Raikh·Felix von Oppen
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Abstract

We study many-body corrections to the cotunneling current via a localized state with energy $ε_d$ at large bias voltages $V$. We show that the transfer of {\em electron pairs}, enabled by the Coulomb repulsion in the localized level, results in ionization resonance peaks in the third derivative of the current with respect to $V$, centered at $eV=\pm 2ε_d/3$. Our results predict the existence of previously unnoticed structure within Coulomb-blockade diamonds.

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Eran Sela, H. S. Sim, Yuval Oreg, M. E. Raikh, Felix von Oppen. 2007-07-19. Electron Pair Resonance in the Coulomb Blockade. https://doi.org/10.1103/physrevlett.100.056809

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