| Numéro |
J. Phys. IV France
Volume 09, Numéro PR10, December 1999
International Workshop on Electronic CrystalsECRYS-99 |
|
|---|---|---|
| Page(s) | Pr10-119 - Pr10-121 | |
| DOI | https://doi.org/10.1051/jp4:19991031 | |
International Workshop
on Electronic Crystals
ECRYS-99
J. Phys. IV France 09 (1999) Pr10-119-Pr10-121
DOI: 10.1051/jp4:19991031
1 Laboratoire de Physique Théorique et des Modèles Statistiques, CNRS, bâtiment 100, Université Paris-Sud, 91406 Orsay cedex, France
2 L.D. Landau Institute, Moscow, Russia
© EDP Sciences 1999
ECRYS-99
J. Phys. IV France 09 (1999) Pr10-119-Pr10-121
DOI: 10.1051/jp4:19991031
Topological coupling of dislocations and magnetization vorticity in spin density waves
S. Brazovski1, 2 and N. Kirova11 Laboratoire de Physique Théorique et des Modèles Statistiques, CNRS, bâtiment 100, Université Paris-Sud, 91406 Orsay cedex, France
2 L.D. Landau Institute, Moscow, Russia
Abstract
The rich order parameter of Spin Density Waves allows for an unusual object of a complex
topological nature : a half-integer dislocation combined with a semi-vortex of the staggered magnetization.
It becomes energetically preferable to ordinary dislocation due to enhanced Coulomb interactions
in the semiconducting regime. Generation of these objects changes the narrow band noise frequency.
© EDP Sciences 1999