Vision of clathrate perovskites, or can they exist?

Abstract

A possibility of existence of a group of new materials, clathrate perovskites, derived from crystals of the rhenium trioxide structure type (as completely vacant perovskites) or (partially) vacant perovskites, such as La_⅔TiO₃, well-known PLZT and others, and with (primarily) inert, non-bound atoms in A sites is discussed.

Keywords:

• clathrates
• perovskites
• vacant perovskites
• rhenium trioxide structure type
• ReO₃