Bilayer Quantum Hall Systems at Filling Factor nu=2: An Exact Diagonalization Study

URN to cite this document:: urn:nbn:de:bvb:355-epub-282575
DOI to cite this document:: 10.5283/epub.28257

Schliemann, John ; MacDonald, A. H.

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Date of publication of this fulltext: 24 May 2013 11:57

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Abstract

We present an exact diagonalization study of bilayer quantum Hall systems at filling factor ν = 2 in the spherical geometry. We find the high-Zeeman-coupling phase boundary of the broken symmetry canted antiferromagnet is given exactly by previous Hartree-Fock mean-field theories, but that the state's stability at weak Zeeman coupling has been qualitatively overestimated. In the absence of ...