New high magnetic field phase of the frustrated $S=1/2$ chain compound LiCuVO$_4$
| Autor: | Svistov, L. E., Fujita, T., Yamaguchi, H., Kimura, S., Omura, K., Prokofiev, A., Smirnov, A. I., Honda, Z., Hagiwara, M. |
|---|---|
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | JETP letters, 2011,93, p.21-25 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1134/S0021364011010073 |
| Popis: | 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). Comment: 5 pages, 4 figures |
| Databáze: | arXiv |
| Externí odkaz: |
|