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Hysteresis, spin transitions, and magnetic ordering in the fractional quantum Hall effect

Cho, Hyun-Ick ; Kang, W. ; Campman, K. L. ; Gossard, A. C. ; Bichler, Max ; Wegscheider, Werner
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Date of publication of this fulltext: 30 Nov 2009 13:21


Abstract

We have studied the development of metastable properties associated with a nearly spin-degenerate two-dimensional electron system. Application of large hydrostatic pressure significantly reduces the g-factor experienced by electrons in GaAs/AlGaAs heterostructure, and various fractional quantum Hall effect (FQHE) states are found to undergo transition to a spin-unpolarized ground state. In case ...

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