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.

Abstract

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.

Citation

Xiao, F., Lancaster, T., Baker, P., Pratt, F., Blundell, S., Möller, J., …Jansen, M. (2013). Magnetic transition and spin dynamics in the triangular Heisenberg antiferromagnet α-KCrO2. Physical review B, 88(18), Article 180401(R). https://doi.org/10.1103/physrevb.88.180401

• Journal Article Type: Article
• Publication Date: Nov 1, 2013
• Deposit Date: Nov 22, 2013
• Publicly Available Date: Jan 14, 2014
• Journal: Physical review B - Condensed Matter and Materials Physics
• Print ISSN: 1098-0121
• Electronic ISSN: 1550-235X
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 88
• Issue: 18
• Article Number: 180401(R)
• DOI: https://doi.org/10.1103/physrevb.88.180401
• Public URL: https://durham-repository.worktribe.com/output/1474554