Professor Tom Lancaster tom.lancaster@durham.ac.uk
Professor
Persistent dynamics in the S = 1/2 quasi-one-dimensional chain compound Rb4Cu(MoO4)3 probed with muon-spin relaxation
Lancaster, T.; Baker, P.J.; Pratt, F.L.; Blundell, S.J.; Hayes, W.; Prabhakaran, D.
Authors
P.J. Baker
F.L. Pratt
S.J. Blundell
W. Hayes
D. Prabhakaran
Abstract
We report the results of muon-spin relaxation measurements on the low-dimensional antiferromagnet Rb4Cu(MoO4)3. No long-range magnetic order is observed down to 50 mK implying a ratio TN/J < 0.005 (where J is the principal exchange strength along the spin chains) and an effective ratio of interchain to intrachain exchange of |J⊥/J | < 2 × 10−3, making the material an excellent realization of a one-dimensional quantum Heisenberg antiferromagnet. We probe the persistent spin excitations at low temperatures and find that ballistic spin transport dominates the excitations detected below 0.3 K.
Citation
Lancaster, T., Baker, P., Pratt, F., Blundell, S., Hayes, W., & Prabhakaran, D. (2012). Persistent dynamics in the S = 1/2 quasi-one-dimensional chain compound Rb4Cu(MoO4)3 probed with muon-spin relaxation. Physical review B, 85(18), Article 184404. https://doi.org/10.1103/physrevb.85.184404
Journal Article Type | Article |
---|---|
Publication Date | May 1, 2012 |
Deposit Date | Jul 2, 2013 |
Publicly Available Date | Feb 5, 2014 |
Journal | Physical Review B |
Print ISSN | 1098-0121 |
Electronic ISSN | 1550-235X |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 85 |
Issue | 18 |
Article Number | 184404 |
DOI | https://doi.org/10.1103/physrevb.85.184404 |
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Copyright Statement
© 2012 American Physical Society
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