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Low temperature ferroelectric behavior in morphotropic Pb (Zr1−xTix)O3

Duffy, DM; (2018) Low temperature ferroelectric behavior in morphotropic Pb (Zr1−xTix)O3. Journal of the American Ceramic Society , 101 (2) pp. 874-882. 10.1111/jace.15101. Green open access

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Abstract

We provide an insight into the switching of near-morphotropic composition of PZT, using molecular dynamics simulations and electrical measurements. The simulations and experiments exhibit qualitatively similar hysteretic behavior of the polarization for different temperatures showing widening of the P-E loops and the decrease in the coercive field toward high temperatures. Remarkably, we have shown that polarization switching at low temperatures occurs via polarization rotation, that is a fundamentally different mechanism from high-temperature switching, which is nucleation driven.

Type: Article
Title: Low temperature ferroelectric behavior in morphotropic Pb (Zr1−xTix)O3
Open access status: An open access version is available from UCL Discovery
DOI: 10.1111/jace.15101
Publisher version: http://doi.org/10.1111/jace.15101
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Atomistic simulation; domains; ferroelectricity/ferroelectric materials; hysteresis
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: https://discovery.ucl.ac.uk/id/eprint/10037797
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