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arXiv · 1005.5668

New high magnetic field phase of the frustrated $S=1/2$ chain compound LiCuVO$_4$

L. E. Svistov·T. Fujita·H. Yamaguchi·S. Kimura·K. Omura·A. Prokofiev·A. I. Smirnov·Z. Honda·M. Hagiwara
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Abstract

Magnetization of the frustrated $S=1/2$ chain compound LiCuVO$_4$, focusing on high magnetic field phases, is reported. Besides a spin-flop transition and the transition from a planar spiral to a spin modulated structure observed recently, an additional transition was observed just below the saturation field. This newly observed magnetic phase is considered as a spin nematic phase, which was predicted theoretically but was not observed experimentally. The critical fields of this phase and its dM/dH curve are in good agreement with calculations performed in a microscopic model (M. E. Zhitomirsky and H. Tsunetsugu, preprint, arXiv:1003.4096v2).

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L. E. Svistov, T. Fujita, H. Yamaguchi, S. Kimura, K. Omura, A. Prokofiev, A. I. Smirnov, Z. Honda, M. Hagiwara. 2010-09-29. New high magnetic field phase of the frustrated $S=1/2$ chain compound LiCuVO$_4$. https://doi.org/10.1134/s0021364011010073

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