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Long-range antiferromagnetic order in the S=1 chain compound LiVGe2O6

M. D. Lumsden·G. E. Granroth·D. Mandrus·S. E. Nagler·J. R. Thompson·J. P. Castellan·B. D. Gaulin
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Abstract

The phase transition in the compound LiVGe2O6 has been proposed as a unique example of a spin-Peierls transition in an S=1 antiferromagnetic chain. We report neutron and x-ray diffraction measurements of LiVGe2O6 above and below the phase transition at T=24 K. No evidence is seen for any structural distortion associated with the transition. The neutron results indicate that the low temperature state is antiferromagnetic, driven by ferromagnetic interchain couplings.

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M. D. Lumsden, G. E. Granroth, D. Mandrus, S. E. Nagler, J. R. Thompson, J. P. Castellan, B. D. Gaulin. 2000-06-13. Long-range antiferromagnetic order in the S=1 chain compound LiVGe2O6. https://doi.org/10.1103/physrevb.62.r9244

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