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arxiv: cond-mat/0207616 · v1 · submitted 2002-07-25 · ❄️ cond-mat.mes-hall

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

classification ❄️ cond-mat.mes-hall
keywords energyfractionalhallquantumactivationexcitationsspinaccessible
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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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