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 language||English (US)|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Dec 23 2015|
Bibliographical noteFunding 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.