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Comment on "Interaction Effects in Conductivity of Si Inversion Layers at Intermediate Temperatures"
A. A. Shashkin, V. T. Dolgopolov, S. V. Kravchenko
We show that the comparison between theory and experiment, performed by Pudalov et al. in PRL 91, 126403 (2003), is not valid.
On the temperature dependence of 2D "metallic" conductivity in Si inversion layers at intermediate temperatures
S. Das Sarma, E. H. Hwang
We show that the recent experimental claim [Pudalov {\it et al}. \prl {\bf 91}, 126403 (2003) ] of observing ``interaction effects in the conductivity of Si inversion layers at int…
Metal-insulator transition in two-dimensional electron systems
S. V. Kravchenko, M. P. Sarachik
The interplay between strong Coulomb interactions and randomness has been a long-standing problem in condensed matter physics. According to the scaling theory of localization, in t…
Sharply increasing effective mass: a precursor of the spontaneous spin polarization in a dilute two-dimensional electron system
A. A. Shashkin, S. V. Kravchenko, V. T. Dolgopolov +1
We have measured the effective mass, m, and Lande g-factor in very dilute two-dimensional electron systems in silicon. Two independent methods have been used: (i) measurements of t…
Spin-independent origin of the strongly enhanced effective mass in a dilute 2D electron system
A. A. Shashkin, Maryam Rahimi, S. Anissimova +3
We have accurately measured the effective mass in a dilute two-dimensional electron system in silicon by analyzing temperature dependence of the Shubnikov-de Haas oscillations in t…