Magnetic transition and spin dynamics in the triangular Heisenberg 
antiferromagnet α-KCrO2

Xiao, F.; Lancaster, T.; Baker, P. J.; Pratt, F. L.; Blundell, S. J.; Möller, J. S.; Ali, N. Z.; Jansen, M.

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Magnetic transition and spin dynamics in the triangular Heisenberg antiferromagnet α-KCrO₂

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Ali, N. Z.
Abteilung Jansen, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Jansen, M.
Abteilung Jansen, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

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

Cite as: https://hdl.handle.net/21.11116/0000-000E-C627-7

Abstract

We present the results of muon-spin relaxation measurements on the triangular lattice Heisenberg antiferromagnet alpha-KCrO2. 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.