2017/05/19 by Roland Jago, Florian Wendler, Ermin Malic +1
Engineering · Materials Science · Mathematics · Physics and Astronomy · #Atomic physics #Auger #Carrier scattering #Computational physics #Condensed matter physics #Current (fluid) #Electric field #Field (mathematics) #Graphene #Graphene research and applications #Low-power high-performance VLSI design #Mathematics #Optics #Phonon #Phonon scattering #Physics #Quantum and electron transport phenomena #Quantum mechanics #Scattering #cond-mat.mes-hall
paper · pdf · doi:10.1088/2053-1583/aa7408
6 pages, 4 figures
arxiv created 2017/05/19 · openalex publication_date 2017/06/01 · arxiv updated 2017/06/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract We present a microscopic study on current generation in graphene in response to an electric field. While scattering is generally considered to reduce the current, we reveal that in graphene Auger processes give rise to a current enhancement via a phenomenon we denote dark carrier multiplication. Based on a microscopic approach, we show that, if other scattering channels are absent, this prevents the carrier distribution to reach a stationary value. Taking into account scattering with phonons a finite current is restored, however its value exceeds the stationary current without scattering.