Wooldridge, J; Stewart, M; Vecchini, C; Cain, M G; Gutmann, M*; Reece, M* (2014) Temperature and frequency dependence of electric field induced phase transitions in PMN-0.32PT. J. Am. Ceram. Soc., 97 (7). pp. 2111-2115.

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Abstract

Single crystal (1 - x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 [PMN-xPT] (x=0.32) is a relaxor-ferroelectric material known to exhibit `giant' piezoelectric behaviour, with achievable strains in excess of 1% for samples of certain particular crystallographic orientations
and chemical compositions close to the morphotropic phase boundary (MPB). In this paper, we investigate the electric field-nduced structural phase transitions in single crystal PMN-0.32PT with time-of-flight neutron diffraction and macroscopic electrical polarisation measurements, and show that both the frequency of the applied ac field and the temperature of the sample are critical factors in determining these phase transition fields.

Item Type:	Article
Keywords:	Piezoelectric single crystal, neutron diffraction
Subjects:	Advanced Materials Advanced Materials > Functional Materials
Identification number/DOI:	10.1111/jace.12904
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/6265

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