2009/05/31 by Amelia Barreiro, Michele Lazzeri, J. Moser +3 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Boltzmann equation #Carbon Nanotubes in Composites #Condensed matter physics #Current (fluid) #Electron #Graphene #Graphene research and applications #Impurity #Materials science #Nanotechnology #Optics #Phonon #Physics #Quantum mechanics #Saturation (graph theory) #Scattering #Thermodynamics #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.103.076601
published as Phys. Rev. Lett. 103 (2009), 076601.
arxiv created 2009/05/31 · openalex publication_date 2009/08/12 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present a detailed study of the high-current transport properties of graphene devices patterned in a four-point configuration. The current tends to saturate as the voltage across graphene is increased but never reaches the complete saturation as in metallic nanotubes. Measurements are compared to a model based on the Boltzmann equation, which includes electron-scattering processes due to charged and neutral impurities, and graphene optical phonons. The saturation is incomplete because of the competition between disorder and optical phonon scattering.