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

Xiao, F. and Lancaster, T. and Baker, P.J. and Pratt, F.L. and Blundell, S.J. and Möller, J.S. and Ali, N.Z. and Jansen, M. (2013) 'Magnetic transition and spin dynamics in the triangular Heisenberg antiferromagnet α-KCrO2.', Physical review B., 88 (18). p. 180401.


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.

Item Type:Article
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Publisher statement:© 2013 American Physical Society
Date accepted:No date available
Date deposited:14 January 2014
Date of first online publication:November 2013
Date first made open access:No date available

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