Structural phase transitions in perovskite layer structures
- 1 January 1980
- journal article
- review article
- Published by Informa UK Limited in Ferroelectrics
- Vol. 24 (1), 81-88
- https://doi.org/10.1080/00150198008238626
Abstract
Perovskite type layer-structure compounds of the formulas (Cn H2n+1 NH3)2·MCl4 and NH3 (CH2)n NH3MCl4 (M = Cd, Mn, Cu, Fe, n = 1–18) exhibit a variety of structural phase transitions which are connected with the dynamics of the alkyl-ammonium or alkylenediammonium chains respectively. Two classes of phase transitions have been observed; Order-disorder transitions of the rigid hydrocarbon chains and conformational transitions of the chains. Typical examples of both classes are presented and their chain dynamics are discussed.Keywords
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