Spin-wave dispersion in half-doped LaSrNiO
| dc.creator | Yao, D. X. | |
| dc.creator | Carlson, E. W. | |
| dc.date | 2006-09-13 | |
| dc.date.accessioned | 2026-07-07T07:48:17Z | |
| dc.date.available | 2026-07-07T07:48:17Z | |
| dc.description | Recent neutron scattering measurements reveal spin and charge ordering in the half-doped nickelate, La$_{3/2}$ Sr$_{1/2}$ NiO$_4$. Many of the features of the magnetic excitations have been explained in terms of the spin waves of diagonal stripes with weak single-ion anisotropy. However, an optical mode dispersing away from the (π,π) point was not captured by this theory. We show here that this apparent optical mode is a natural consequence of stripe twinning in a diagonal stripe pattern with a magnetic coupling structure which is two-fold symmetric, i.e. one possessing the same spatial rotational symmetry as the ground state. | |
| dc.description | 4 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0609300 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0609300 | |
| dc.identifier | Phys. Rev. B 75, 012414 (2007) | |
| dc.identifier | doi:10.1103/PhysRevB.75.012414 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/124441 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Materials Science | |
| dc.title | Spin-wave dispersion in half-doped LaSrNiO | |
| dc.type | text |