2000/04/18 by N. Kirova, S. Brazovskii
Physics and Astronomy · #cond-mat.str-el
published as Journ. de Physique, IV France, v.10, p.P3-183 (2000) · 9 pages, 2 figures
arxiv created 2000/04/18 · arxiv updated 2009/11/30
The rich order parameter of Spin Density Waves allows for unusual object of a complex topological nature: a half-integer dislocation combined with a semi-vortex of a staggered magnetization. It becomes energetically preferable to ordinary dislocation due to enhanced Coulomb interactions in the semiconducting regime. Generation of these objects changes e.g. the narrow band noise frequency.