Interplay of magneto-elastic and polaronic effects in electronic transport through suspended carbon-nanotube quantum dots

Year: 2012

Authors: Rastelli G., Houzet M., Glazman L., Pistolesi F.

Autors Affiliation: Univ Bordeaux, LOMA, UMR 5798, F-33400 Talence, France; Univ Grenoble 1, CNRS, LPMMC UMR 5493, F-38042 Grenoble, France; INAC, UJF Grenoble 1, SPSMS, UMR E CEA 9001, F-38054 Grenoble, France; Yale Univ, Dept Phys, New Haven, CT 06520 USA; CNRS, LOMA, UMR 5798, F-33400 Talence, France

Abstract: We investigate the electronic transport through a suspended carbon-nanotube quantum dot. In the presence of a magnetic field perpendicular to the nanotube and a nearby metallic gate, two forces act on the electrons: the Laplace and the electrostatic force. They both induce coupling between the electrons and the mechanical transverse oscillation modes. We find that the difference between the two mechanisms appears in the cotunneling current.

Journal/Review: COMPTES RENDUS PHYSIQUE

Volume: 13 (5)      Pages from: 410  to: 425

More Information: This work has been supported by ANR through contract JCJC-036 NEMESIS and by the Nanosciences Foundation (Grenoble). G.R. acknowledges support from the European networks SOLID and GEOMDISS, and from ANR contract QUANTJO.
KeyWords: Nano-electromechanical system, Polaron, Quantum dot
DOI: 10.1016/j.crhy.2012.03.001

Citations: 10
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