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

H. Saarikoski, E. Räsänen, S. Siljamäki, A. Harju, M. Puska, R. Nieminen

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

We study a model quantum dot system in an external magnetic field by using both spin-density-functional theory and current-spin density-functional theory. The theories are used with local approximations for the spin-density and 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.
Original languageEnglish
Article number205327
Pages (from-to)1-5
Number of pages5
JournalPhysical Review B
Volume67
Issue number20
DOIs
Publication statusPublished - 30 May 2003
MoE publication typeA1 Journal article-refereed

Keywords

  • current-spin-density-functional theory
  • local spin density approximation
  • quantum dots
  • spin-density-functional theory

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