Ordering by quantum fluctuations in a strongly frustrated Heisenberg antiferromagnet

Harris, A. B. and Berlinsky, A. J. and Bruder, C.. (1991) Ordering by quantum fluctuations in a strongly frustrated Heisenberg antiferromagnet. Journal of applied physics, Vol. 69, H. 8, Part 2A. pp. 5200-5202.

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Official URL: http://edoc.unibas.ch/dok/A5252869

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The nature of the ordering of a quantum spin-1/2 Heisenberg antiferromagnet is considered in the presence of the strong lattice frustration associated with the pyrochlore lattice. A field theory indicates that quantum fluctuations lead to a state having dimerization that has long-range static correlations not in but rather in . A sublattice ordering is found that is consistent with results obtained using degenerate perturbation theory to analyze the ground-state manifold.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder)
UniBasel Contributors:Bruder, Christoph
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Institute of Physics
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:53

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