Activation energies for spin-reversed excitations in the fractional quantum Hall effect

Sudhansu S. Mandal, Jainendra K. Jain

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The activation energy measured in transport experiments in the fractional Hall regime corresponds to the energy required to create a far separated particle hole pair. We calculate, for several fractional quantum Hall states, the energy gaps for the excitation in which the excited composite fermion reverses its spin-quantum number. Our results indicate that such spin-reversed excitations may be relevant in experimentally accessible regimes.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number12
DOIs
StatePublished - Jan 1 2001

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Quantum Hall effect
Fermions
quantum Hall effect
Energy gap
Activation energy
activation energy
Composite materials
quantum numbers
excitation
fermions
Experiments
composite materials
energy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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abstract = "The activation energy measured in transport experiments in the fractional Hall regime corresponds to the energy required to create a far separated particle hole pair. We calculate, for several fractional quantum Hall states, the energy gaps for the excitation in which the excited composite fermion reverses its spin-quantum number. Our results indicate that such spin-reversed excitations may be relevant in experimentally accessible regimes.",
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