Activation energies for spin-reversed excitations in the fractional quantum Hall effect - art. no. 125310

摘要

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. [References: 40]