Central role of exchange-correlation hole in the 2D metal-insulator
Thakur, J. S. · Neilson, D.
Original · EN
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.
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