News and Views
Nature Physics 3, 756 - 758 (2007)
doi:10.1038/nphys768
Subject Categories: Condensed-matter physics | Materials physics
Quantum many-body physics: 2D or not 2D?
Ross H. McKenzie1
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Ross H. McKenzie is in the School of Physical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia.
e-mail: mckenzie@physics.uq.edu.au
Abstract
In the fractional quantum Hall effect, the quasiparticles carry fractional charge. But neutral excitations with fractional spin have been elusive in two-dimensional magnets. Is it possible that they have already been observed?
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