Composition-induced antiferroelectric phase and giant strain in lead-free (Na y ,Bi z )Ti 1- x O 3(1- x ) -xBaTiO 3 ceramics
(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]
|Collections||ANU Research Publications|
|Source:||Physical Review B: Condensed Matter and Materials|
|01_Guo_Composition-induced_2011.pdf||980.87 kB||Adobe PDF|
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