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

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

2002-07-25

arxiv.org/abs/cond-mat/0207616v1

Phys. Rev. B, vol. 64, 125310 (2001)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.64.125310

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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