Theory of Néel and Valence-Bond-Solid Phases on the Kagome Lattice of Zn-paratacamite

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Theory of Néel and Valence-Bond-Solid Phases on the Kagome Lattice of Zn-paratacamite

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Title: Theory of Néel and Valence-Bond-Solid Phases on the Kagome Lattice of Zn-paratacamite
Author: Lawler, Michael; Fritz, Lars; Kim, Yong; Sachdev, Subir

Note: Order does not necessarily reflect citation order of authors.

Citation: Lawler, Michael, Lars Fritz, Yong Kim, and Subir Sachdev. 2008. Theory of Néel and valence-bond-solid phases on the kagome lattice of Zn-paratacamite. Physical Review Letters 100(18): 187201.
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Abstract: Recently, neutron scattering data on powder samples of Zn-paratacamite, Zn\(_x\)Cu\(_{4-x}\)(OH)\(_6\)Cl\(_{2}\), with small Zn concentration has been interpreted as evidence for valence bond solid and Neel ordering. We study the classical and quantum Heisenberg models on the distorted kagome lattice appropriate for Zn-paratacamite at low Zn doping. Our theory naturally leads to the emergence of the valence bond solid and collinear magnetic order at zero temperature. Implications of our results to the existing experiments are discussed. We also suggest future inelastic neutron and X-ray scattering experiments that can test our predictions.
Published Version: doi:10.1103/PhysRevLett.100.187201
Other Sources: http://arxiv.org/PS_cache/arxiv/pdf/0709/0709.4489v2.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:7483594
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