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

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.

Cited by in corpus (12)

• Composite Fermions in Negative Effective Magnetic Field: A Monte-Carlo Study
• Possible Pairing-Induced Even-Denominator Fractional Quantum Hall Effect in the Lowest Landau Level
• Evidence of Landau levels and interactions in low-lying excitations of composite fermions at 1/3 <= ν<= 2/5
• Higher Energy Composite Fermion Levels in the Fractional Quantum Hall Effect
• Absorption in the fractional quantum Hall regime: trion dichroism and spin polarization
• Spin-texture and magneto-roton excitations at nu=1/3
• Transition from Free to Interacting Composite Fermions away from $\nu$=1/3
• Light scattering observations of spin reversal excitations in the fractional quantum Hall regime
• Resonant Enhancement of Inelastic Light Scattering in the Fractional Quantum Hall Regime at $\nu =1/3$
• Spin-excitations of the quantum Hall ferromagnet of composite fermions
• Spinless and spinful charge excitations in moiré Fractional Chern Insulators
• Light Scattering by Low Lying Quasiparticle Excitations in the Fractional Quantum Hall Regime