N.Z. Ali
Magnetostructural relationship in the tetrahedral spin-chain oxide CsCoO2
Ali, N.Z.; Williams, R.C.; Xiao, F.; Clark, S.J.; Lancaster, T.; Blundell, S.J.; Sheptyakov, D.V.; Jansen, M.
Authors
R.C. Williams
F. Xiao
Professor Stewart Clark s.j.clark@durham.ac.uk
Professor
Professor Tom Lancaster tom.lancaster@durham.ac.uk
Professor
S.J. Blundell
D.V. Sheptyakov
M. Jansen
Abstract
We have investigated the structural and magnetic transitions in CsCoO2 using calorimetric measurements, neutron powder diffraction, density functional theory calculations, and muon-spin relaxation measurements. CsCoO2 exhibits three-dimensional long-range antiferromagnetic (AFM) order at 424 K, resulting in antiferromagnetic alignment of chains of ferromagnetically ordered Co-Co spin dimers. Although there is no change in magnetic structure around a structural transition at T∗=100 K, the resulting bifurcation of corner-shared Co-O-Co bond angles causes a weakening of the AFM interaction for one set of bonds along the chains. Consequently, the system undergoes a complex freezing out of relaxation processes on cooling.
Citation
Ali, N., Williams, R., Xiao, F., Clark, S., Lancaster, T., Blundell, S., …Jansen, M. (2015). Magnetostructural relationship in the tetrahedral spin-chain oxide CsCoO2. Physical review B, 91(2), Article 024419. https://doi.org/10.1103/physrevb.91.024419
Journal Article Type | Article |
---|---|
Online Publication Date | Jan 20, 2015 |
Publication Date | Jan 20, 2015 |
Deposit Date | Apr 23, 2015 |
Publicly Available Date | Mar 29, 2024 |
Journal | Physical Review B |
Print ISSN | 1098-0121 |
Electronic ISSN | 1550-235X |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 91 |
Issue | 2 |
Article Number | 024419 |
DOI | https://doi.org/10.1103/physrevb.91.024419 |
Related Public URLs | arXiv:1410.3686 |
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Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review B 91, 024419 © 2015 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.
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