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26 April 2024

» arxiv » 1004.1023

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Magnetoelastic and structural properties of azurite Cu3(CO3)2(OH)2 from neutron scattering and muon spin resonance
M.C.R. Gibson ; K.C. Rule ; A.U.B. Wolter ; J.-U. Hoffmann ; O. Prokhnenko ; D.A. Tennant ; S. Gerischer ; M. Kraken ; F.J. Litterst ; S. Süllow ; J. Schreuer ; H. Luetkens ; A. Brühl ; B. Wolf ; M. Lang ;
Date:	7 Apr 2010
Abstract:	Azurite, Cu3(CO3)2(OH)2, has been considered an ideal example of a one-dimensional (1D) diamond chain antiferromagnet. Early studies of this material imply the presence of an ordered antiferromagnetic phase below $T_N sim 1.9$ K while magnetization measurements have revealed a 1/3 magnetization plateau. Until now, no corroborating neutron scattering results have been published to confirm the ordered magnetic moment structure. We present recent neutron diffraction results which reveal the presence of commensurate magnetic order in azurite which coexists with significant magnetoelastic strain. The latter of these effects may indicate the presence of spin frustration in zero applied magnetic field. $mu$SR reveals an onset of short-range order below 3K and confirms long-range order below $T_N$.
Source:	arXiv, 1004.1023
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