Theory of integer quantum Hall effect in graphene

Details Theory of integer quantum Hall effect in graphene Theory of integer quantum Hall effect in graphene

2006-10-12

arxiv.org/abs/cond-mat/0610349v3

Physical Review B, vol. 75, 165411 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 2 figures, new paragraph on hierarchy of energy scales, new references, published version

Scientific paper

10.1103/PhysRevB.75.165411

The observed quantization of the Hall conductivity in graphene at high magnetic fields is explained as being due to the dynamically generated spatial modulation of either the electron spin or the density, as decided by the details of Coulomb interaction on the scale of lattice constant. It is predicted that at a large in-plane component of the magnetic field such ordering will be present only at the filling factor |f|=1, and absent otherwise. Other experimental consequences of the theory are outlined.

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