Models for the description of uniaxially modulated materials
B. Neubert, M. Pleimling and R. Siems
Models which allow an explicit application to structurally modulated
substances are reviewed within the frame of a symmetry-based
approach starting from discrete lattice theory.
Focus is set on models formulated in terms of local variables assigned
discrete crystallographic units (unit cells or parts of them).
Especially considered are symmetry-based pseudo spin models. Methods
are discussed which permit the handling of the statistical mechanics of
models, the translation of model calculation results to a form allowing
of experimental data, and the theoretical determination of point defect