Journal
PHYSICAL REVIEW B
Volume 83, Issue 23, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.83.235104
Keywords
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Funding
- Swiss NSF [IZ73Z0-128026]
- European FP7 program [SIMTECH 246937]
- SFFR-RFBR
- Physics and Astronomy Division of the NAS of Ukraine
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It is shown that a magnetic field dramatically affects the problem of supercritical charge in graphene, making any charge in gapless theory supercritical. The cases of a radially symmetric potential well and a Coulomb center in a homogeneous magnetic field are considered. The local density of states and polarization charge density are calculated in the first order of perturbation theory. It is argued that the magnetically induced instability of the supercritical Coulomb center can be considered as a quantum-mechanical counterpart of the magnetic catalysis phenomenon in graphene.
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