Phase analysis, local crystal chemistry and the crystallography of incommensurate crystal phases

Abstract

The notion of multiple (partial) occupancy is shown to be an inadequate descriptive tool for continuously variable, composition dependent solid solutions. Instead of random substitution on partially occupied sites, such solid solution phases are usually found to be modulated - either in a long range ordered modulated structure form (composite or conventional) or in a locally ordered form leading to a highly structured diffuse distribution. Show more