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cond-mat.mes-hall2014★ 16 cited
Scattering theory and ground-state energy of Dirac fermions in graphene with two Coulomb impurities
D. Klöpfer, A. De Martino, D. Matrasulov +1
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…
cond-mat.mes-hall2014★ 36 cited
Electric dipole induced universality for Dirac fermions in graphene
A. De Martino, D. Kloepfer, D. Matrasulov +1
We study electric dipole effects for massive Dirac fermions in graphene and related materials. The dipole potential accomodates towers of infinitely many bound states exhibiting a…