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.

doi:10.1103/physrevb.88.180401

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.

Authors

F. Xiao

Professor Tom Lancaster tom.lancaster@durham.ac.uk
Professor

P.J. Baker

F.L. Pratt

S.J. Blundell

J.S. Möller

N.Z. Ali

M. Jansen

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
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