Deconstruction of the Trap Model for the New Conducting State in 2D

Details Deconstruction of the Trap Model for the New Conducting State in 2D Deconstruction of the Trap Model for the New Conducting State in 2D

1999-10-07

arxiv.org/abs/cond-mat/9910122v3

Phys. Rev. B, vol. 64, 113202/1-13202/2

Physics

Condensed Matter

Strongly Correlated Electrons

Published version of Deconstruction

Scientific paper

A key prediction of the trap model for the new conducting state in 2D is that the resistivity turns upwards below some characteristic temperature, $T_{\rm min}$. Altshuler, Maslov, and Pudalov have argued that the reason why no upturn has been observed for the low density conducting samples is that the temperature was not low enough in the experiments. We show here that $T_{\rm min}$ within the Altshuler, Maslov, and Pudalov trap model actually increases with decreasing density, contrary to their claim. Consequently, the trap model is not consistent with the experimental trends.

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