SCALE STRUCTURES

摘要

The ideal crystal is an abstract concept that is used in crystallographic descriptions. In these, the crystal, obtained by oxidation of a metal by a gas, is assumed to have a chemical composition determined by the valency of the constitutive elements. Moreover, this compound is also assumed to have a compact morphology without geometric limitations and a defined crystallographic structure. In reality, the lattice of an actual crystal always contains imperfections or "defects".