ECRYS - 93
J. Phys. IV France 03 (1993) C2-185-C2-187
Intrinsic defects in density wavesS. BRAZOVSKII and N. KIROVA
Landau Institute for Theoretical Physics, Moscow, Russia
We present new results on properties of topological defects in Density Wave crystals. For an isolated point - (a 2π - soliton) and for a line - (a dislocation) defects the Coulomb interaction dominates in determining distributions of the phase φ, the potential Φ and of the accompanying electronic structure. The last shows itself e.g. in a collapse of the density wave gap over a large number of chains around a dislocation. In spin density wave conventional dislocations loose their priority in favor of special topological objects : half - integer dislocations combined with a semi - vortex of a staggered magnetization vector.
© EDP Sciences 1993