Title of article
Growth and characterizations of lead-free ferroelectric KNN-based crystals
Author/Authors
Prakasam، نويسنده , , Mythili and Veber، نويسنده , , Philippe and Viraphong، نويسنده , , Oudomsack and Etienne، نويسنده , , Laetitia and Lahaye، نويسنده , , Michel and Pechev، نويسنده , , Stanislav and Lebraud، نويسنده , , Eric and Shimamura، نويسنده , , Kiyoshi and Maglione، نويسنده , , Mario، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
8
From page
133
To page
140
Abstract
We have grown by flux method centimeter-sized single crystals from pseudo-hexanary Li2O–Na2O–K2O–Nb2O5–Ta2O5–Sb2O3 system. Based on chemical analysis, crystals of compositions (Li0.023Na0.583K0.394)(Nb0.925Ta0.037Sb0.038)O3 and (Li0.034Na0.609K0.357)(Nb0.896Ta0.047Sb0.057)O3 were characterized by X-rays diffraction which revealed a tetragonal structure. The dielectric analysis confirmed that the ferroelectric behavior of these crystals is very sensitive to little changes in composition as previously observed on ceramics. Such high flexibility of the ferroelectric properties in crystals opens the way towards improved understanding of the relations between structure and polarization in solid solutions which may be an alternative to the lead-based materials.
Keywords
Ferroelectric materials , Inorganic compound , High temperature solution growth , Cristallogenèse , Solution hautes températures , Composés inorganiques , Matériaux ferroélectriques
Journal title
Comptes Rendus Physique
Serial Year
2013
Journal title
Comptes Rendus Physique
Record number
2284468
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