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Klöpfer, D.; De Martino, A.; Matrasulov, D.; Egger, R. (2014)
Languages: English
Types: Article
Subjects: TK, Condensed Matter - Mesoscale and Nanoscale Physics

Classified by OpenAIRE into

arxiv: Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
We study the physics of Dirac fermions in a gapped graphene monolayer containing two Coulomb impurities. For the case of equal impurity charges, we discuss the ground-state energy using the linear combination of atomic orbitals (LCAO) approach. For opposite charges of the Coulomb centers, an electric dipole potential results at large distances. We provide a nonperturbative analysis of the corresponding low-energy scattering problem.
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