Indication of the ferromagnetic instability in a dilute two-dimensional electron system

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

References in corpus (8)

• Metallic behavior and related phenomena in two dimensions
• Magnetic Field Suppression of the Conducting Phase in Two Dimensions
• Spin Degree of Freedom in a Two-Dimensional Electron Liquid
• Magnetoresistance of a two-dimensional electron gas in a parallel magnetic field
• Small Angle Shubnikov-de Haas Measurements in Silicon MOSFET's: the Effect of Strong In-Plane Magnetic Field
• Shubnikov-de Haas oscillations near the metal-insulator transition in a two-dimensional electron system in silicon
• Spin Polarized Ground State for Interacting Electrons in Two Dimensions
• Weak Field Hall Resistance and Effective Carrier Density Through Metal-Insulator Transition in Si-MOS Structures

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