Spin magnetization of a strongly correlated electron gas confined in a two-dimensional finite lattice

M. Niţă, V. Dinu, A. Aldea, and B. Tanatar
Phys. Rev. B 69, 073106 – Published 27 February 2004
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Abstract

The influence of disorder and interaction effects on the ground state polarization of the two-dimensional correlated electron gas is studied by numerical investigations of the unrestricted Hartree-Fock approach. With the model of Anderson disorder a continuous increase of the spin magnetization until the fully polarized regime is obtained. The ferromagnetic ground state is found to be favorable when the electron number is lowered and the interaction and disorder parameters are suitably chosen.

  • Received 31 March 2003

DOI:https://doi.org/10.1103/PhysRevB.69.073106

©2004 American Physical Society

Authors & Affiliations

M. Niţă, V. Dinu, and A. Aldea

  • Institute of Physics and Technology of Materials, P.O. Box MG7, Bucharest-Magurele, Romania

B. Tanatar

  • Department of Physics, Bilkent University, 06800 Bilkent, Ankara, Turkey

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Issue

Vol. 69, Iss. 7 — 15 February 2004

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