Hysteretic resistance spikes at transitions between quantum Hall ferromagnets in AlAs 2D electrons

E. P. De Poortere, E. Tutuc, M. Shayegan

Research output: Contribution to journalConference article

4 Scopus citations

Abstract

We report hysteretic resistance spikes at transitions between quantum Hall ferromagnets in AlAs two-dimensional electrons. The observed magnetic hysteresis depends sensitively on the electron occupation of the two energy levels crossing at the transition. Temperature-dependent measurements show that the resistance spikes at the transition are not activated, in contrast to the resistance minima away from the transition, which follow an Arrhenius behavior.

Original languageEnglish (US)
Pages (from-to)36-38
Number of pages3
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume12
Issue number1-4
DOIs
StatePublished - Jan 1 2002
Event14th International Conference on the - Prague, Czech Republic
Duration: Jul 30 2001Aug 3 2001

All Science Journal Classification (ASJC) codes

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

Keywords

  • 2D electron system
  • Aluminum arsenide
  • Quantum Hall ferromagnets
  • Resistance spikes

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