Comment on "Low-Density Spin Susceptibility and Effective Mass of Mobile Electrons in Si Inversion Layers"

Abstract

In a recent Letter (PRL 88, 196404 (2002)), the effective g-factor and the effective mass have been studied by Pudalov et al. in a dilute 2D electron system in silicon. The authors contrast their data with the data obtained by our group (Shashkin et al., PRL 87, 086801 (2001)) and claim that the spin susceptibility "increases gradually with decreasing density", which "does not support the occurrence of spontaneous spin polarization and divergence of gm..." The purpose of this Comment is to show that all available experimental data, including those of Pudalov et al., are consistent with each other and are in favor of a spontaneous spin polarization and divergence of gm at a finite electron density in this 2D system.

arXiv commentas published

References in corpus (4)

• The low-density spin susceptibility and effective mass of mobile electrons in Si inversion layers
• Indication of the ferromagnetic instability in a dilute two-dimensional electron system
• Scaling of the magnetoconductivity of silicon MOSFET's: evidence for a quantum phase transition in two dimensions
• Shubnikov-de Haas oscillations near the metal-insulator transition in a two-dimensional electron system in silicon

Cited by in corpus (13)

• Metal-insulator transition in two-dimensional electron systems
• Transport in strongly correlated two dimensional electron fluids
• Spin-independent origin of the strongly enhanced effective mass in a dilute 2D electron system
• Metal-insulator transitions and the effects of electron-electron interactions in two-dimensional electron systems
• Remote-doping scattering and the local field corrections in the 2D electron system in a modulation-doped Si/SiGe quantum well
• Direct measurements of the spin and the cyclotron gaps in a 2D electron system in silicon
• On the Electron-Electron Interactions in Two Dimensions
• Conductivity of a spin-polarized two-dimensional electron liquid in the ballistic regime
• Sharply increasing effective mass: a precursor of the spontaneous spin polarization in a dilute two-dimensional electron system
• Correlation energy of a two-dimensional electron gas from static and dynamic exchange-correlation kernels
• Reply to Comment on "Low-Density Spin Susceptibility and Effective Mass of Mobile Electrons in Si Inversion Layers"
• Effect of Screening on Spin Polarization in a Two-Dimensional Electron Gas
• Divergence of effective mass in 'Uncorrelated State Percolation' Model