Periodic Behavior and Vortex Patterns in Non-circular Quantum Dots

نویسندگان

  • E. Räsänen
  • A. Harju
  • H. Saarikoski
  • M. J. Puska
  • R. M. Nieminen
  • M. A. M. de Aguiar
چکیده

We use the spin-density-functional theory to study the effects of an external magnetic field on two-dimensional quantum dots with a non-circular hard-wall confining potential [1]. The increasing magnetic field leads to spin-polarization and formation of a highly inhomogeneous maximum-density droplet (MDD). The onset of the MDD can be predicted from the number of flux quanta which only depends on the area of the dot and is thus independent of the geometry.

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تاریخ انتشار 2004