Quasi-bound states of Schrodinger and Dirac electrons in magnetic quantum dot

Details Quasi-bound states of Schrodinger and Dirac electrons in magnetic quantum dot Quasi-bound states of Schrodinger and Dirac electrons in magnetic quantum dot

2009-07-21

arxiv.org/abs/0907.3653v1

Phys. Rev. B 79, 155451 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 10 figures

Scientific paper

10.1103/PhysRevB.79.155451

The properties of a two-dimensional electron are investigated in the presence of a circular step magnetic field profile. Both electrons with parabolic dispersion as well as Dirac electrons with linear dispersion are studied. We found that in such a magnetic quantum dot no electrons can be confined. Nevertheless close to the Landau levels quasi-bound states can exist with a rather long life time.

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