Acoustic emission study of phase transitions and polar nanoregions in relaxor-based systems: Application to the Pb Zn1 3 Nb2 3 O3 family of single crystals

E. Dul'kin*, M. Roth, P. E. Janolin, B. Dkhil

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

The restored strain energy in Pb Zn1 3 Nb2 3 O3 (PZN) and 9%PbTi O3 -doped PZN (PZN-9%PT) relaxor crystals has been studied by means of acoustic emission (AE). Two types of AE activity signals have been recorded: (i) related to temperature- or electric-field-induced macroscopic phase transitions and (ii) associated with formation/disappearance of intrinsic polar nanoregions. Monitoring of AE under varying [001] electric fields has allowed a unique in situ observation of a low-field (1 kV cm) irreversible orthorhombic-to- MC phase transition within the morphotropic phase boundary region of PZN-9%PT.

Original languageAmerican English
Article number012102
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number1
DOIs
StatePublished - 2006

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