Comment on “Interaction Effects in Conductivity of Si Inversion Layers at Intermediate Temperatures”

A Comment on the Letter by V. M. Pudalov et al., Phys. Rev. Lett. 91, 125403 (2003).

Figure 1

Conductivity versus temperature for (a) $n=2.46$ and (b) $2.23\times {10}^{11}{\mathrm{c}\mathrm{m}}^{-2}$ along with the slopes $d\sigma /dT$ recalculated from $d\rho /dT$ of Ref. 1. Also shown are the fits to the data using the screening theory [6] with the effective mass values taken from Ref. 9.