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Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2009

Two-dimensional electron gas in a periodic magnetic field

Résumé

We study the energy spectrum and electronic properties of a two-dimensional (2D) spinless electron gas in a periodic magnetic field which has the symmetry of a triangular lattice. We show that the energy bands depend strongly on the value of the magnetic field. For large field the low-energy electrons are localized on closed rings where the magnetic field vanishes. This results in the appearance of persistent currents around these rings. We also calculate the intrinsic Hall conductivity, which is quantized when the Fermi level is in a gap.

Dates et versions

hal-00992817 , version 1 (19-05-2014)

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Claudine Lacroix, M. Taillefumier, V. K. Dugaev, Benjamin Canals, P. Bruno. Two-dimensional electron gas in a periodic magnetic field. Journal of Magnetism and Magnetic Materials, 2009, 321, pp.906-908. ⟨10.1016/J.JMMM.2008.11.085⟩. ⟨hal-00992817⟩

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