Inorganic Materials

, Volume 42, Issue 11, pp 1236–1242

Anomalous properties of Am−1Bi2BmO3m+3 layered ferroelectrics

  • V. A. Isupov
Article

DOI: 10.1134/S0020168506110112

Cite this article as:
Isupov, V.A. Inorg Mater (2006) 42: 1236. doi:10.1134/S0020168506110112

Abstract

Statistical analysis is presented of the literature data on the properties of Am−1Bi2BmO3m+3 layered ferroelectrics consisting of alternating perovskite-like slabs and bismuth-oxygen layers. The results reveal new and confirm some of the known tendencies. The Bi-O layers are shown to tighten the structure of these compounds, and the effect becomes stronger with decreasing slab thickness. As the distortion of the pseudoperovskite cells in the perovskite-like slabs increases, the Curie temperature TC passes through a maximum. Its position depends on the slab thickness (m). Thus, at strong lattice distortions, TC decreases with increasing distortion, in conflict with the Abrahams-Kurtz-Jamieson relation. The observed anomalies are tentatively attributed to changes in the nature of ion displacements.

Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • V. A. Isupov
    • 1
  1. 1.Ioffe Physicotechnical InstituteRussian Academy of SciencesSt. PetersburgRussia