Journal
LOW TEMPERATURE PHYSICS
Volume 34, Issue 10, Pages 790-793Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2981388
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We analyze a gap equation for the propagator of Dirac quasiparticles and conclude that in graphene in a magnetic field, the order parameters connected with the quantum Hall ferromagnetism dynamics and those connected with the magnetic catalysis dynamics necessarily coexist (the latter have the form of Dirac masses and correspond to excitonic condensates). This feature of graphene could lead to important consequences, in particular, for the existence of gapless edge states. Solutions of the gap equation corresponding to recently experimentally discovered novel plateaus in graphene in strong magnetic fields are described. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2981388]
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