General approach to structural categorization

5 ‚ Layered structures

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1 ‚ Perovskites
2 ‚ Cation-deficient structures
3 ‚ Anion-deficient structures
4 ‚ Polytypes AmBnX3m
5 ‚ Layered structures
5.1 ‚ Series A A'n‚1 Bn X3n+1
5.2 ‚ "M-1201"-Series
5.3 ‚ "M-1212"-Series
5.4 ‚ "M-1223"-Series
5.5 ‚ Higher Homologues
6 ‚ Ruddlesden-Popper-phases
7 ‚ Aurivillius phases
8 ‚ Other Homological Series

A feature of all compounds in this section is their basic space group: P 4/m m m (No. 123).

The commonly used notation for the fundamental series is M-12(n-1)n,
where M = Tl, Hg, Pb, Cu etc.

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).


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