General approach to structural categorization

1 ‚ Perovskites

Hierarchy ‚ Overview Perovskites ‚ Overview Homepage

1 ‚ Perovskites
1.1 ‚ Cubic Structures
1.2 ‚ Slightly Distorted Cubic Structures
1.3 ‚ Disordered Solid Solutions
1.4 ‚ Ordered Compounds
2 ‚ Cation-deficient structures
3 ‚ Anion-deficient structures
4 ‚ Polytypes AmBnX3m
5 ‚ Layered structures
6 ‚ Ruddlesden-Popper-phases
7 ‚ Aurivillius phases
8 ‚ Other Homological Series

This section covers stoichiometric perovskites,
i.e. the ratio of A : B : X ions remains constant at 1 : 1 : 3.

With respect to this condition, only a few structural changes are possible:

  • structural distorsion due to misfit of ideal ionic raddi etc. (1.2)
  • Solid solutions of type (A,A')BO3 or A(B,B')O3 etc. (1.3)
  • Ordered compounds containing different A, B and/or X ions (1.4)

Adapted from "Hierarchies of perovskite-like crystals" by K. S. Aleksandrow and V. V. Beznosikov in Physics of the Solid State 39, 695-715 (1997).

Hierarchy ‚ Overview Perovskites ‚ Overview Homepage

last changed: Jul 16, 1998. © 1997‚1998 Carsten Schinzer.