Numéro
J. Phys. IV France
Volume 03, Numéro C2, Juillet 1993
International Workshop on Electronic Crystals
ECRYS - 93
Page(s) C2-185 - C2-187
DOI http://dx.doi.org/10.1051/jp4:1993237
International Workshop on Electronic Crystals
ECRYS - 93

J. Phys. IV France 03 (1993) C2-185-C2-187

DOI: 10.1051/jp4:1993237

Intrinsic defects in density waves

S. BRAZOVSKII and N. KIROVA

Landau Institute for Theoretical Physics, Moscow, Russia


Abstract
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.



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