Central role of exchange-correlation hole in the 2D metal-insulator

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We show that the metal to insulator transition, whether generated by decreasing the electron density or by increasing the spin alignment, is determined by a universal functional form of the two-electron correlation function g(r). This result provides direct evidence of the central role of the Coulomb repulsion and exchange in driving the metal-insulator transition.
5 pages in ReVTeX, 2 encapsulated postscript figures

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Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/16004

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0001435
 http://arxiv.org/abs/cond-mat/0001435

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arXiv