Rectangular quantum dots in high magnetic fields

Esa Räsänen, Ari Harju, Martti Puska, Risto M. Nieminen

Research output: Contribution to journalArticleScientificpeer-review

31 Citations (Scopus)
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Abstract

We use density-functional methods to study the effects of an external magnetic field on two-dimensional quantum dots with a rectangular hard-wall confining potential. The increasing magnetic field leads to spin polarization and formation of a highly inhomogeneous maximum-density droplet at the predicted magnetic-field strength. At higher fields, we find an oscillating behavior in the electron density and in the magnetization of the dot. We identify a rich variety of phenomena behind the periodicity and analyze the complicated many-electron dynamics, which is shown to be highly dependent on the shape of the quantum dot.
Original languageEnglish
Article number165309
Pages (from-to)1-5
Number of pages5
JournalPhysical Review B
Volume69
Issue number16
DOIs
Publication statusPublished - 14 Apr 2004
MoE publication typeA1 Journal article-refereed

Keywords

  • maximum-density droplet
  • quantum dot

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