Iso-structural phase transitions in BiFeO3

J.F. Scott

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

This essay discusses recent work on bismuth ferrite, which reveals theoretically and experimentally a phase transition under stress that does not change symmetry but changes the c/a lattice constant ratio. As shown by Ishibashi, such transitions must be discontinuous and are described by free energies eighth-order in polarization P. Such a predicted two-step change in P is also known in potassium nitrate films.
Original languageEnglish
Pages (from-to)2106-2107
Number of pages2
JournalAdvanced Materials
Volume22
Issue number19
DOIs
Publication statusPublished - 18 May 2010

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