Zorko, A., Bert, F., Ozarowski, A., van Tol, J., Boldrin, D. , Wills, A.S. and Mendels, P. (2013) Dzyaloshinsky-Moriya interaction in vesignieite: a route to freezing in a quantum kagome antiferromagnet. Physical Review B, 88(14), 144419. (doi: 10.1103/PhysRevB.88.144419)
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Abstract
We report an electron-spin-resonance investigation of the geometrically frustrated spin-1/2 kagome antiferromagnet vesignieite, BaCu 3 V 2 O 8 (OH) 2 . Analysis of the linewidths and line shifts indicates the dominance of in-plane Dzyaloshinsky-Moriya anisotropy that is proposed to suppress strongly quantum spin fluctuations and thus to promote long-range ordering rather than a spin-liquid state. We also evidence an enhanced spin-phonon contribution that might originate from a lattice instability and discuss the origin of a low-temperature mismatch between intrinsic and bulk susceptibility in terms of local inhomogeneity.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Boldrin, Dr David |
Authors: | Zorko, A., Bert, F., Ozarowski, A., van Tol, J., Boldrin, D., Wills, A.S., and Mendels, P. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Physical Review B |
Publisher: | American Physical Society |
ISSN: | 1098-0121 |
ISSN (Online): | 1550-235X |
Published Online: | 22 October 2013 |
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