John Schliemann
Published 2008-09-01, updated 2008-11-27Version 2
We discuss models for massless Dirac fermions being subject to a perpendicular magnetic field in spherical geometry. These models are analogues of Haldane`s spherical construction for massful charge carriers. The single particle states constructed here are easily implemented in existing numerical code for many-body problems in conventional quantum Hall systems. Moreover, the many-body states of fully filled sublevels in the subspace of lowest Landau level index are skyrmions with respect to the layer spin.
Comments: 6 pages, no figures
Journal: Phys. Rev. B 78, 195426 (2008)
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