Magnetic phases in the Kagome staircase compound Co3V2O8
| dc.creator | Wilson, N. R. | |
| dc.creator | Petrenko, O. A. | |
| dc.creator | Chapon, L. C. | |
| dc.date | 2006-10-04 | |
| dc.date.accessioned | 2026-07-07T07:27:20Z | |
| dc.date.available | 2026-07-07T07:27:20Z | |
| dc.description | The low temperature properties of the Kagome-type system Co3V2O8 have been studied by powder neutron diffraction both in zero field and in applied magnetic field of up to 8 T. Below 6 K, the zero-field ground state is ferromagnetic with the magnetic moments aligned along the a-axis. The size of the moment on one of the two Co sites, the so called cross-tie site, is considerably reduced compared to the fully polarized state. The application of a magnetic field in this phase is found to rapidly enhance the cross-tie site magnetic moment, which reaches the expected value of ~3muB by the maximum applied field of 8 T. Different reorientation behaviors are found for the Co cross-tie and spine sites, suggesting a more pronounced easy-axis anisotropy for moments on the spine sites. Rietveld refinements reveal that a simple model, where the spins on both cross-tie and spine sites rotate in the ac-plane in a magnetic field, reproduces the experimental diffraction patterns well. In addition, it is found that at higher temperatures and moderate magnetic fields, the incommensurate antiferromagnetic order, corresponding to a transverse sinusoidal modulation above 8 K, is suppressed to be replaced by ferromagnetic order. | |
| dc.description | 6 pages, 5 figures, 2 tables | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0610098 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0610098 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/117342 | |
| dc.subject | Materials Science | |
| dc.title | Magnetic phases in the Kagome staircase compound Co3V2O8 | |
| dc.type | text |