Meinel, I. and Grundler, D. and Heitmann, Detlef and Manolescu, Andrei and Gudmundsson, V. and Wegscheider, Werner and Bichler, Max
Enhanced magnetization at integer quantum Hall states.
Physical Review B 64 (12), 121306R.
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We report on enhancements in the magnetization of two-dimensional electron systems in the quantum Hall regime. The observed discontinuities in the magnetization exceed the predictions for interacting electrons calculated in the Hartree-Fock approximation where only the exchange enhancement of the energy gaps is taken into account. We attribute the further enhancement to many-body correlation ...
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