A triple quantum dot in a single wall carbon nanotube

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A top-gated single wall carbon nanotube is used to define three coupled quantum dots in series between two electrodes. The additional electron number on each quantum dot is controlled by top-gate voltages allowing for current measurements of single, double and triple quantum dot stability diagrams. Simulations using a capacitor model including tunnel coupling between neighboring dots captures the observed behavior with good agreement. Furthermore, anti-crossings between indirectly coupled levels and higher order cotunneling are discussed.
Supporting Information is available at Nano Lett. website (see link below)

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Mesoscale and Nanoscale Physics, Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/159321

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0804.3441
 http://arxiv.org/abs/0804.3441
 Nano Lett. 8 (4), 1055, 2008
 doi:10.1021/nl072948y

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arXiv