Coulomb impurities in graphene driven by fast ions
S. RakhmanovChirchik State Pedagogical University - 104 Amur Temur Str., 111700 Chirchik, UzbekistanReinhold EggerInstitut für Theoretische Physik, Heinrich-Heine-Universität - 40225 Düsseldorf, GermanyDoniyor JumanazarovDepartment of Physics, Urgench State University - Urgench 220100, UzbekistanD. U. MatrasulovCenter for Theoretical Physics, Khazar University - 41 Mehseti Street, Baku, AZ1096, Azerbaijan
ABI
Аннотация
Abstract We provide a theoretical model for electronic transitions in a two-dimensional (2D) artificial atom in a graphene monolayer. The artificial atom is due to the presence of a charged adatom (Coulomb impurity) in the layer and interacts with a fast ultrarelativistic ion moving parallel to the layer. We compute the probability and cross-sections for the corresponding electronic transitions by means of an exact solution of the time-dependent 2D Dirac equation describing the interaction of the planar atom with the electromagnetic field of the ultrarelativistic projectile.
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