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Composition-induced antiferroelectric phase and giant strain in lead-free (Na y ,Bi z )Ti 1- x O 3(1- x ) -xBaTiO 3 ceramics

Guo, Yiping; Gu, Mingyuan; Luo, Haosu; Liu, Yun; Withers, Raymond

Description

(Nay,Biz)Ti1-xO3(1-x)- xBaTiO3 ceramics with an excess in Bi3+ and/or a deficiency in Na+ were prepared and investigated. It is found that an antiferroelectric phase can be induced through a modulation of the mole ratio of Na+ and Bi3+. A phase boundary between ferroelectric and antiferroelectric phases can be observed at ambient temperature. A modulated phase, which is the origin of relaxor antiferroelectric behavior, should be attributed to a compositional modulation. The antiferroelectric...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/61313
Source: Physical Review B: Condensed Matter and Materials
DOI: 10.1103/PhysRevB.83.054118

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