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Magnetic order and ballistic spin transport in a sine-Gordon spin chain
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Huddart, B. M., Gomilšek, M., Hicken, T. J., Pratt, F. L., Blundell, S. J., Goddard, P. A., Kaech, S. J., Manson, J. L. and Lancaster, T. (2021) Magnetic order and ballistic spin transport in a sine-Gordon spin chain. Physical Review B (Condensed Matter and Materials Physics), 103 (6). L060405 . doi:10.1103/PhysRevB.103.L060405 ISSN 1098-0121.
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WRAP-Magnetic-order-ballistic-spin-transport-sine-Gordon-spin-chain-2021.pdf - Accepted Version - Requires a PDF viewer. Download (2096Kb) | Preview |
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Official URL: https://doi.org/10.1103/PhysRevB.103.L060405
Abstract
We report the results of muon-spin spectroscopy (μ+SR) measurements on the staggered molecular spin chain [pym-Cu(NO3)2(H2O)2] (pym = pyrimidine), a material previously described using sine-Gordon field theory. Zero-field μ+SR reveals a long range magnetically-ordered ground state below a transition temperature TN=0.22(1) K. Using longitudinal-field (LF) μ+SR we investigate the dynamic response in applied magnetic fields 0<B<500 mT and find evidence for ballistic spin transport. Our LF μ+SR measurements on the chiral spin chain [Cu(pym)(H2O)4]SiF6⋅H2O instead demonstrate one-dimensional spin diffusion and the distinct spin transport in these two systems likely reflects differences in their magnetic excitations.
Item Type: | Journal Article | ||||||||||||||||||
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Subjects: | Q Science > QC Physics | ||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Muon spin rotation, Field theory (Physics), Antiferromagnetism | ||||||||||||||||||
Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||||||||||||||||
Publisher: | American Physical Society | ||||||||||||||||||
ISSN: | 1098-0121 | ||||||||||||||||||
Official Date: | 15 February 2021 | ||||||||||||||||||
Dates: |
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Volume: | 103 | ||||||||||||||||||
Number: | 6 | ||||||||||||||||||
Article Number: | L060405 | ||||||||||||||||||
DOI: | 10.1103/PhysRevB.103.L060405 | ||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||
Publication Status: | Published | ||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||
Copyright Holders: | © 2021 American Physical Society | ||||||||||||||||||
Date of first compliant deposit: | 27 January 2021 | ||||||||||||||||||
Date of first compliant Open Access: | 27 January 2021 | ||||||||||||||||||
RIOXX Funder/Project Grant: |
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