Frustration and correlations in stacked triangular-lattice Ising antiferromagnets

F. J. Burnell, J. T. Chalker

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Abstract

We study multilayer triangular-lattice Ising antiferromagnets with interlayer interactions that are weak and frustrated in an abc stacking. By analyzing a coupled height model description of these systems, we show that they exhibit a classical spin liquid regime at low temperature, in which both intralayer and interlayer correlations are strong but there is no long-range order. Diffuse scattering in this regime is concentrated on a helix in reciprocal space, as observed for charge ordering in the materials LuFe2O4 and YbFe2O4.

Original languageEnglish (US)
Article number220417
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume92
Issue number22
DOIs
StatePublished - Dec 23 2015

Bibliographical note

Funding Information:
We thank F. H. L. Essler, O. A. Starykh, and especially P. G. Radaelli for discussions. F.J.B. is supported by NSF-DMR 1352271. J.T.C. is supported in part by EPSRC Grant No. EP/I032487/1.

Publisher Copyright:
© 2015 American Physical Society.

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