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Phonon runaway in nanotube quantum dots | | L. Siddiqui
; A. W. Ghosh
; S. Datta
; | | Date: |
12 Jun 2006 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | | Abstract: | We present a formulation of electronic transport in a nanotube quantum dot strongly coupled with vibrations and weakly with leads and the thermal environment. We show that recent observation of anomalous conductance sigatures in single-walled carbon nanotube (SWCNT) quantum dots can be understood quantitatively in terms of `hot phonon’ using the joint electron-phonon distribution. On the basis of our model, we argue that the variations are indicative of strong electron-phonon coupling requiring an analysis beyond the traditional Tien-Gordon approach. | | Source: | arXiv, cond-mat/0606273 | | Services: | Forum | Review | PDF | Favorites | |
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