Acoustic emission and nonergodic states of the electric-field-induced-phase transition of PbMg 1/3Nb 2/3O 3

E. Dul'kin*, M. Roth, B. Dkhil, J. M. Kiat

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Acoustic emission (AE) method was used to investigate the electric-field-induced-phase transition in the well-known relaxor Pb (Mg13 Nb23) O3 (PMN). We show that in the field cooling process the induced-phase transition is accompanied by an AE signal, which reflects relaxation of the strong stress, associated with arising of a macroscopic domains structure similar to martensitic phase transition. However, using a procedure in which the field is applied after a zero field cooling, no AE signal is detected even after a very long time higher than expected for the appearance of the induced-phase transition. The comparison with previous x-ray-diffraction results allowed to get in the last case interesting insights on the local and long-range polar order of the induced ferroelectric state because of absence of the relaxation of the strong stress due to percolation mechanism of this phase transition.

Original languageAmerican English
Article number023520
JournalJournal of Applied Physics
Volume98
Issue number2
DOIs
StatePublished - 15 Jul 2005

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