Аннотация:
Magnetization of the frustrated S=1/2 chain compound LiCuVO4, 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, Europhys. Lett. 92, 37001 (2010)).
Образец цитирования:
L. E. Svistov, T. Fujita, H. Yamaguchi, S. Kimura, K. Omura, A. Prokofiev, A. I. Smirnov, Z. Honda, M. Hagiwara, “New high magnetic field phase of the frustrated S=1/2 chain compound LiCuVO4”, Письма в ЖЭТФ, 93:1 (2011), 24–28; JETP Letters, 93:1 (2011), 21–25
K. M. Ranjith, F. Landolt, S. Raymond, A. Zheludev, M. Horvatić, Phys. Rev. B, 105:13 (2022)
F. Mazza, P. Y. Portnichenko, S. Avdoshenko, P. Steffens, M. Boehm, Eun Sang Choi, M. Nikolo, X. Yan, A. Prokofiev, S. Paschen, D. S. Inosov, Phys. Rev. B, 105:17 (2022)