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Durham University

Department of Physics

Staff profile

Publication details for Professor Tom Lancaster

Xiao, F., Lancaster, T., Baker, P.J., Pratt, F.L., Blundell, S.J. Möller, J.S. Ali, N.Z. & Jansen, M. (2013). Magnetic transition and spin dynamics in the triangular Heisenberg antiferromagnet α-KCrO2. Physical Review B 88(18): 180401(R).

Author(s) from Durham


We present the results of muon-spin relaxation measurements on the triangular lattice Heisenberg antiferromagnet α -KCrO 2 . We observe sharp changes in behavior at an ordering temperature of T c =23 K, with an additional broad feature in the muon-spin relaxation rate evident at T=13 K, both of which correspond to features in the magnetic contribution to the heat capacity. This behavior is distinct from both the Li- and Na-containing members of the series. These data may be qualitatively described with the established theoretical predictions for the underlying spin system.