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NMR study of the high-field magnetic phase of LiCuVO_4

机译:LiCuVO_4高场磁相的NMR研究

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摘要

We report on NMR studies of the quasi-one-dimensional antiferromagnetic S= 1/2 chain cuprate LiCuVO_4. focusing on the high-field spin-modulated phase observed recently in applied magnetic fieldsrn≈ 7.5 T). The NMR spectra of ~7Li and ~(51)V around the transition from the ordered to the paramagnetic state were measured. It is shown that the spin-modulated magnetic structure forms with ferromagnetic interactions between spins of neighboring chains within the ab plane at low temperatures 0.6 K
机译:我们报告了准一维反铁磁S = 1/2链铜酸盐LiCuVO_4的NMR研究。集中于最近在外加磁场中观察到的高场自旋调制相(≈7.5 T)。测量了从有序态到顺磁态跃迁附近的〜7Li和〜(51)V的NMR光谱。结果表明,在低温0.6 K

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