Spin-modulated quasi-1D antiferromagnet LiCuVO_4
| dc.creator | Buettgen, N. | |
| dc.creator | von Nidda, H. -A. Krug | |
| dc.creator | Svistov, L. E. | |
| dc.creator | Prozorova, L. A. | |
| dc.creator | Prokofiev, A. | |
| dc.creator | Assmus, W. | |
| dc.date | 2007-01-04 | |
| dc.date.accessioned | 2026-07-07T08:27:35Z | |
| dc.date.available | 2026-07-07T08:27:35Z | |
| dc.description | We report on magnetic resonance studies within the magnetically ordered phase of the quasi-1D antiferromagnet LiCuVO_4. Our studies reveal a spin reorientational transition at a magnetic field H_c1 ~ 25 kOe applied within the crystallographical (ab)-plane in addition to the recently observed one at H_c2 \~75 kOe [ M.G. Banks et al., cond-mat/0608554 (2006)]. Spectra of the antiferromagnetic resonance (AFMR) along low-frequency branches can be described in the frame of a macroscopic theory of exchange-rigid planar magnetic structures. These data allow to obtain the anisotropy of the exchange interaction together with a constant of the uniaxial anisotropy. Spectra of 7Li nuclear magnetic resonance (NMR) show that, within the magnetically ordered phase of LiCuVO_4 in the low-field range H < H_c1, a planar spiral spin structure is realized with the spins lying in the (ab)-plane in agreement with neutron scattering studies of B.J. Gibson et al. [Physica B Vol. 350, 253 (2004)]. Based on NMR spectra simulations, the transition at H_c1 can well be described as a spin-flop transition, where the spin plane of the magnetically ordered structure rotates to be perpendicular to the direction of the applied magnetic field. For H > H_c2 ~ 75 kOe, our NMR spectra simulations show that the magnetically ordered structure exhibits a modulation of the spin projections along the direction of the applied magnetic field H. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0701083 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0701083 | |
| dc.identifier | Phys. Rev. B 76, 014440 (2007) | |
| dc.identifier | doi:10.1103/PhysRevB.76.014440 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/137322 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Materials Science | |
| dc.title | Spin-modulated quasi-1D antiferromagnet LiCuVO_4 | |
| dc.type | text |