Divergence of effective mass in 'Uncorrelated State Percolation' Model

Details Divergence of effective mass in 'Uncorrelated State Percolation' Model Divergence of effective mass in 'Uncorrelated State Percolation' Model

2007-09-13

arxiv.org/abs/0709.2005v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 5 figures

Scientific paper

We want to answer the question of whether the divergence in the effective mass in metal-insulator transition (MIT) in 2DEG is in the same universality class as percolation. We use a model to make Percolated state in 2D and then calculate the effective mass in a super-cell and the Bloch Theorem. It is seen that the effective mass, m*, scales as m*~(P-Pc)^a with a=1 and Pc being the (classical) percolation threshold.

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