Acoustic emission during the ferroelectric transition Pm(3)over-barm to P4mm in BaTiO3 and the ferroelastic transition R(3)over-barm-C2/c in Pb-3(PO4)(2)

Salje, E. K. H. and Dul'kin, E and Roth, M (2015) Acoustic emission during the ferroelectric transition Pm(3)over-barm to P4mm in BaTiO3 and the ferroelastic transition R(3)over-barm-C2/c in Pb-3(PO4)(2). Applied Physics Letters, 106 (ARTN 1). ISSN 0003-6951, ESSN: 1077-3118 DOI 10.1063/1.4902511

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Abstract

Acoustic emission (AE) spectroscopy without frequency filtering (∼broadband AE) and moderate time integration is shown to be sensitive enough to allow the investigation of subtle nano-structural changes in ferroelectric BaTiO3 and ferroelastic Pb 3(PO4)2. AE signals during weak phase transitions are compatible with avalanche statistics as observed previously in large-strain systems. While the data are too sparse to determine avalanche exponents, they are well suited to determine other thermodynamic parameters such as transition temperatures and critical stresses.

Item Type:	Article
Uncontrolled Keywords:	2015AREP; IA69;
Subjects:	03 - Mineral Sciences
Divisions:	03 - Mineral Sciences
Journal or Publication Title:	Applied Physics Letters
Volume:	106
Identification Number:	10.1063/1.4902511
Depositing User:	Sarah Humbert
Date Deposited:	17 Aug 2015 11:57
Last Modified:	25 Aug 2015 14:58
URI:	http://eprints.esc.cam.ac.uk/id/eprint/3403

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