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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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:	Date Event 2008 Published
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

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