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

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

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 densit...

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Veröffentlicht in:Physical review letters 2001-08, Vol.87 (8), p.086801-086801, Article 086801
Hauptverfasser: Shashkin, A A, Kravchenko, S V, Dolgopolov, V T, Klapwijk, T M
Format: Artikel
Sprache:eng
Schlagworte:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELECTRON DENSITY
ELECTRONS
INSTABILITY
MAGNETIC FIELDS
SILICON
SPIN
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Zusammenfassung: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.87.086801