Probing spin physics in the quantum Hall regime by heat capacity and magnetotransport measurements

Sorin Melinte, Mansour Shayegan, Vincent Bayot

Research output: Contribution to journalArticle

Abstract

We review recent heat capacity and magnetotransport experiments on GaAs/AlGaAs heterostructures containing multilayer two-dimensional electron systems (2DESs) in the quantum Hall regime. Emphasis in this article is on the study of the heat capacity near Landau level filling factor v = 1. We also present a detailed survey of the development of the quantum Hall effect in tilted-magnetic fields for v ≲ 2. Among the novel phenomena we address is the strong coupling between the nuclear spins and the electrons associated with the spin phase transitions of the 2DES at v = 4/3 and near v = 1.

Original languageEnglish (US)
Pages (from-to)667-676
Number of pages10
JournalComptes Rendus Physique
Volume3
Issue number6
DOIs
StatePublished - Jan 1 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Keywords

  • Heat capacity
  • Magnetotransport
  • Phase transitions
  • Quantum Hall effect
  • Spin dynamics
  • Two-dimensional electron systems

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