2012/04/27 by G. Giavaras, Franco Nori · 1 citation
Materials Science · Physics and Astronomy · #Condensed matter physics #Coupling (piping) #Electric field #Graphene #Graphene quantum dot #Graphene research and applications #Magnetic field #Materials science #Monolayer #Nanotechnology #Physics #Quantum and electron transport phenomena #Quantum dot #Quantum mechanics #Quantum tunnelling #Topological Materials and Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.85.165446
published as Physical Review B 85, 165446 (2012) · 12 pages, 8 figs
openalex publication_date 2012/04/27 · arxiv created 2012/07/02 · arxiv updated 2015/06/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We examine a graphene quantum dot formed by combining an electric and a uniform magnetic field. The electric field creates a smooth quantum well potential while the magnetic field induces an exponential tail to the dot states. The states peak in the well and the electrostatic barrier region as a result of the Klein tunneling effect. Coupling between dot states which peak in different regions can be achieved with the electric and magnetic fields. The tunability of this dot with moderate external fields could be used for designing quantum devices in monolayer graphene.