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Ferroelectric and piezoelectric properties of Aurivillius phase intergrowth ferroelectrics and the underlying materials design

Yi, Zhiguo; Li, Y X; Liu, Yun

Description

Ferroelectric and piezoelectric properties of the La-doped intergrowth Aurivillius phase ceramics Bi 5-xLa xTiNbWO 15 and Bi 7-xLa xTi 4NbO 21 (x = 0.00-1.75) were studied. It was found that the La doping is in favour of the domain switching. Owing to the impact of defects, the P-E hysteresis loops of the La-doped Bi 5TiNbWO 15 ceramics are un-symmetrical and the piezoelectric coefficients are quite low. Enhanced ferro-/piezoelectric properties, such as 2P r of 24.4 μC/cm 2 (x = 0.50) and d 33...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/59175
Source: Physica Status Solidi A
DOI: 10.1002/pssa.201000077

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