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Spin-liquid behavior in a kagome antiferromagnet : Deuteronium jarosite

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Fak, B., Coomer, F. C., Harrison, Andrew, Visser, D. and Zhitomirsky, M. E. (2008) Spin-liquid behavior in a kagome antiferromagnet : Deuteronium jarosite. EPL (Europhysics Letters), Volume 81 (Number 1). Article No. 17006. doi:10.1209/0295-5075/81/17006 ISSN 0295-5075.

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Official URL: http://dx.doi.org/10.1209/0295-5075/81/17006

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Abstract

The spin dynamics of the frustrated quasi-two-dimensional spin-5/2 Heisenberg antiferromagnetic kagome compound deuteronium jarosite, (D3O) Fe-3(SO4)(2)(OD)(6), has been studied using inelastic neutron scattering. The dynamic magnetic susceptibility shows a clear spin-liquid behavior with strong dynamic short-range correlations with staggered chirality, as seen from the wave vector dependence at finite-energy transfers. The magnetic scattering at low temperatures is gapless and extends out to at least 20 meV. The dynamics shows a non-exponential relaxation behavior but no dynamical w/T scaling. The characteristic energy (inverse relaxation rate) increases linearly with temperature. Copyright (C) EPLA, 2008.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Nuclear spin, Antiferromagnetism, Lattice theory
Journal or Publication Title: EPL (Europhysics Letters)
Publisher: Institute of Physics Publishing Ltd.
ISSN: 0295-5075
Official Date: 2008
Dates:
DateEvent
2008Published
Volume: Volume 81
Number: Number 1
Number of Pages: 6
Page Range: Article No. 17006
DOI: 10.1209/0295-5075/81/17006
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

Data sourced from Thomson Reuters' Web of Knowledge

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