Department of Physics Papers

Document Type

Journal Article

Date of this Version

4-15-1991

Publication Source

Journal of Applied Physics

Volume

69

Issue

8

Start Page

5200

Last Page

5202

DOI

10.1063/1.348098

Abstract

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 〈S〉 but rather in 〈S(r)⋅S(r+δ)〉. A sublattice ordering is found that is consistent with results obtained using degenerate perturbation theory to analyze the ground‐state manifold.

Copyright/Permission Statement

Reprinted with permission from the Journal of Applied Physics. Copyright 1991, American Institute of Physics.

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Date Posted: 12 August 2015

This document has been peer reviewed.