Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102366
Title: Domain structures and local switching in lead-free piezoceramics Ba0.85Ca0.15Ti0.90Zr0.10O3
Authors: Turygin, A. P.
Neradovskiy, M. M.
Naumova, N. A.
Zayats, D. V.
Coondoo, I.
Kholkin, A. L.
Shur, V. Y.
Шур, В. Я.
Issue Date: 2015
Publisher: American Institute of Physics Inc.
Citation: Domain structures and local switching in lead-free piezoceramics Ba0.85Ca0.15Ti0.90Zr0.10O3 / A. P. Turygin, M. M. Neradovskiy, N. A. Naumova, et al. — DOI 10.1063/1.4927802 // Journal of Applied Physics. — 2015. — Vol. 118. — Iss. 7. — 072002.
Abstract: Lead-free piezoelectrics are becoming increasingly important in view of environmental problems of currently used lead-based perovskites such as lead zirconate titanate (PZT). One of the recent candidates for PZT replacement, solid solutions of BaZr0.2Ti0.8O3 and Ba0.7Ca0.3TiO3, are investigated in this work by piezoresponse force microscopy. Coexistence of the tetragonal and rhombohedral phases in this material is observed, which probably gives rise to easy polarization switching due to multiple domain states. The period of observed domain lamella scales with the grain size obeying well-known square root dependence characteristic of BaTiO3 ceramics. Domain switching and relaxation are investigated at the nanoscale as a function of the applied voltage and duration of the applied voltage pulses. The observed distortion of piezoresponse hysteresis loops near grain boundaries is attested to the increased concentration of defects. Nanoscale piezoelectric properties of these materials are discussed. © 2015 AIP Publishing LLC.
Keywords: FERROELECTRIC CERAMICS
GRAIN BOUNDARIES
MATERIALS PROPERTIES
NANOTECHNOLOGY
PIEZOELECTRIC CERAMICS
SCANNING PROBE MICROSCOPY
SEMICONDUCTING LEAD COMPOUNDS
ENVIRONMENTAL PROBLEMS
LEAD FREE PIEZOCERAMICS
LEAD ZIRCONATE TITANATE
LEAD-FREE PIEZOELECTRICS
PIEZORESPONSE FORCE MICROSCOPY
POLARIZATION SWITCHING
SQUARE-ROOT DEPENDENCE
TETRAGONAL AND RHOMBOHEDRAL PHASIS
CALCIUM
URI: http://hdl.handle.net/10995/102366
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84939832190
PURE ID: 314470
881da0d3-92bc-4b82-98be-7e780191b7ca
ISSN: 218979
DOI: 10.1063/1.4927802
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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