Doped graphene as tunable electron-phonon coupling material

Attaccalite, Claudio; Wirtz, L.; Lazzeri, M.; Mauri, Francesco; Rubio, A.

Document type :

Article dans une revue scientifique

DOI :

10.1021/nl9034626

Title :

Doped graphene as tunable electron-phonon coupling material

Author(s) :

Attaccalite, Claudio [Auteur]
Wirtz, L. [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Lazzeri, M. [Auteur]
Mauri, Francesco [Auteur]
Rubio, A. [Auteur]

Journal title :

Nano Letters

Pages :

1172-1176

Publisher :

American Chemical Society

Publication date :

2010

ISSN :

1530-6984

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

We present a new way to tune the electron-phonon coupling (EPC) in graphene by changing the deformation potential with electron/hole doping. We show the EPC for highest optical branch at the high symmetry point K, acquires ...
Show more >We present a new way to tune the electron-phonon coupling (EPC) in graphene by changing the deformation potential with electron/hole doping. We show the EPC for highest optical branch at the high symmetry point K, acquires a strong dependency on the doping level due to electronelectron correlation not accounted in mean-field approaches. Such a dependency influences the dispersion (with respect to the laser energy) of the Raman D and 2D lines and the splitting of the 2D peak in multi-layer graphene. Finally this doping dependence opens the possibility to construct tunable electronic devices through the external control of the EPCShow less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Non spécifiée

Popular science :

Non

Collections :

Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL

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