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

A. A. Shashkin·S. V. Kravchenko·V. T. Dolgopolov·T. M. Klapwijk
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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.

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A. A. Shashkin, S. V. Kravchenko, V. T. Dolgopolov, T. M. Klapwijk. 2001-05-06. Indication of the ferromagnetic instability in a dilute two-dimensional electron system. https://doi.org/10.1103/physrevlett.87.086801

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