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

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.

4 pages, 4 ps figures, REVTEX, submitted to PRL

References in corpus (3)

• Biquadratic interactions and spin-Peierls transition in the spin 1 chain LiVGe2O6
• On the origin of biquadratic exchange in spin 1 chains
• LiVGe2O6, an anomalous quasi 1D, $S=1$ system, as revealed by NMR

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• High Magnetic Field NMR Studies of LiVGe${}_2$O${}_6$, a quasi 1-D Spin $S=1$ System
• NMR and dc-susceptibility studies of NaVGe2O6
• Thermal and magnetic properties of integrable spin-1 and spin-3/2 chains with applications to real compounds