Testing of two-dimensional local approximations in the current-spin and spin-density-functional theories

Phys. Rev. B 67, 205327 (2003) We study a model quantum dot system in an external magnetic field by using both the spin-density-functional theory and the current-spin-density-functional theory. The theories are used with local approximations for the spin-density and the vorticity. The reliabilities...

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Hauptverfasser: Saarikoski, H, Räsänen, E, Siljamäki, S, Harju, A, Puska, M. J, Nieminen, R. M
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Räsänen, E
Siljamäki, S
Harju, A
Puska, M. J
Nieminen, R. M
description Phys. Rev. B 67, 205327 (2003) We study a model quantum dot system in an external magnetic field by using both the spin-density-functional theory and the current-spin-density-functional theory. The theories are used with local approximations for the spin-density and the vorticity. The reliabilities of different parametrizations for the exchange-correlation functionals are tested by comparing the ensuing energetics with quantum Monte Carlo results. The limit where the vorticity dependence should be used in the exchange-correlation functionals is discussed.
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title Testing of two-dimensional local approximations in the current-spin and spin-density-functional theories
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