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

G. Rastelli; M. Houzet; L. Glazman; F. Pistolesi

doi:10.1016/j.crhy.2012.03.001

Interplay of magneto-elastic and polaronic effects in electronic transport through suspended carbon-nanotube quantum dots
[Influence des effets magnéto-élastique et polaronique sur le transport électronique à travers un point quantique formé avec un nanotube de carbone suspendu]

G. Rastelli ¹ ; M. Houzet ² ; L. Glazman ³ ; F. Pistolesi ^4,⁵

¹ Univ. Grenoble 1/CNRS, LPMMC UMR 5493, maison des magistères, 38042 Grenoble, France
² SPSMS, UMR-E 9001 CEA/UJF-Grenoble 1, INAC, 38054 Grenoble, France
³ Departments of Physics, Yale University, New Haven, CT 06520, USA
⁴ Univ. Bordeaux, LOMA, UMR 5798, 33400 Talence, France
⁵ CNRS, LOMA, UMR 5798, 33400 Talence, France

Comptes Rendus. Physique, Volume 13 (2012) no. 5, pp. 410-425.

Résumé
Abstract

Nous étudions le transport électronique à travers un point quantique formé avec un nanotube de carbone suspendu. En présence dʼun champ magnétique perpendiculaire au nanotube et dʼune grille métallique, deux forces agissent sur les électrons : la force de Laplace et la force électrostatique. Elles induisent toutes les deux un couplage entre les électrons et les modes dʼoscillations mécaniques transverses. Nous trouvons quʼune différence entre les deux mécanismes de couplage se manifeste à des ordres supérieurs dans le courant tunnel.

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.

Publié le : 2012-04-23

DOI : 10.1016/j.crhy.2012.03.001

Keywords: Polaron, Quantum dot, Nano-electromechanical system
Mot clés : Polaron, Boîte quantique, Système nano-électromécanique

Affiliations des auteurs :

G. Rastelli ¹ ; M. Houzet ² ; L. Glazman ³ ; F. Pistolesi ^{4, 5}

¹ Univ. Grenoble 1/CNRS, LPMMC UMR 5493, maison des magistères, 38042 Grenoble, France
² SPSMS, UMR-E 9001 CEA/UJF-Grenoble 1, INAC, 38054 Grenoble, France
³ Departments of Physics, Yale University, New Haven, CT 06520, USA
⁴ Univ. Bordeaux, LOMA, UMR 5798, 33400 Talence, France
⁵ CNRS, LOMA, UMR 5798, 33400 Talence, France

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     author = {G. Rastelli and M. Houzet and L. Glazman and F. Pistolesi},
     title = {Interplay of magneto-elastic and polaronic effects in electronic transport through suspended carbon-nanotube quantum dots},
     journal = {Comptes Rendus. Physique},
     pages = {410--425},
     publisher = {Elsevier},
     volume = {13},
     number = {5},
     year = {2012},
     doi = {10.1016/j.crhy.2012.03.001},
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G. Rastelli; M. Houzet; L. Glazman; F. Pistolesi. Interplay of magneto-elastic and polaronic effects in electronic transport through suspended carbon-nanotube quantum dots. Comptes Rendus. Physique, Volume 13 (2012) no. 5, pp. 410-425. doi : 10.1016/j.crhy.2012.03.001. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2012.03.001/

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