Spin-polarized quantum transport and magnetic field-dependent carrier density in magnetic two-dimensional electron gases

R. Knobel, N. Samarth, S. A. Crooker, D. D. Awschalom

Research output: Contribution to journalConference articlepeer-review

16 Scopus citations

Abstract

Low-temperature magneto-transport and magneto-photoluminescence measurements are reported in magnetic two-dimensional electron gas samples formed by modulation doping shallow (Zn,Cd,Mn)Se single quantum wells. The small Fermi energy (approximately 1-2 meV) and large exchange-induced spin splitting (approximately 10 meV) results in a completely spin-polarized electron gas at filling factors as high as v = 12. Further, the spin splitting significantly perturbs the confinement potential, resulting in a magnetic field-dependent carrier density.

Original languageEnglish (US)
Pages (from-to)786-789
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume6
Issue number1
DOIs
StatePublished - Feb 2000
Event13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can
Duration: Aug 1 1999Aug 6 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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