A central role for the exchange-correlation hole in the 2D metal-insulator transition

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dc.creatorGeldart, D. J. W.
dc.creatorNeilson, D.
dc.creatorThakur, J. S.
dc.date2000-10-11
dc.date.accessioned2026-07-07T02:38:58Z
dc.date.available2026-07-07T02:38:58Z
dc.descriptionThe 2D metal-insulator transition can be induced either by decreasing the carrier density or by increasing the spin polarization by applying a magnetic field parallel to the plane. Using experimental results for the shift in critical carrier density in an applied field, we show that the two-electron pair correlation function at short distance ($k_Fr\alt2$) has a universal form along the transition line in the magnetic field-carrier density plane. This result provides direct evidence of the central role of Coulomb repulsion and the exchange-correlation hole in driving the metal-insulator transition.
dc.description8 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0010156
dc.identifierhttp://arxiv.org/abs/cond-mat/0010156
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/16880
dc.subjectStrongly Correlated Electrons
dc.titleA central role for the exchange-correlation hole in the 2D metal-insulator transition
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