Indication of the ferromagnetic instability in a dilute two-dimensional electron system
arXiv:cond-mat/0007402 · doi:10.1103/PhysRevLett.87.086801
Abstract
The magnetic field B_c, in which the electrons become fully spin-polarized, is found to be proportional to the deviation of the electron density from the zero-field metal-insulator transition in a two-dimensional electron system in silicon. The tendency of B_c to vanish at a finite electron density suggests a ferromagnetic instability in this strongly correlated electron system.
4 pages, postscript figures included. Revised version