Rectangular quantum dots in high magnetic fields

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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5

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Physical Review B, Volume 69, issue 16, pp. 1-5

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.

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Räsänen, E, Harju, A, Puska, M & Nieminen, R M 2004, 'Rectangular quantum dots in high magnetic fields', Physical Review B, vol. 69, no. 16, 165309, pp. 1-5. https://doi.org/10.1103/PhysRevB.69.165309