Ferroelectric properties of lanthanum and titanium modified SBN ceramic system

The dielectric properties of lanthanum (La) and titanium (Ti) modified SBN ceramics were investigated in this work. The ferroelectric to paraelectric transition temperature is found to be sensitive to the substitution degree of host ions. In particular, high values of permittivity at room temperatur...

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Veröffentlicht in:	Phys. Status Solidi (b). Vol. 238, no. 1, pp. 198-203. 2003 no. 1, pp. 198-203. 2003, 2003-07, Vol.238 (1), p.198-203
Hauptverfasser:	Venet, M., Garcia, D., Eiras, J. A., M'Peko, J.-C., Amorín, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	77.22.Ch 77.80.Bh 77.84.Dy Condensed matter: electronic structure, electrical, magnetic, and optical properties Dielectric loss and relaxation Dielectric properties of solids and liquids Dielectric, piezoelectric, ferroelectric and antiferroelectric materials Dielectrics, piezoelectrics, and ferroelectrics and their properties Exact sciences and technology Niobates, titanates, tantalates, pzt ceramics, etc Permittivity (dielectric function) Physics
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Zusammenfassung:	The dielectric properties of lanthanum (La) and titanium (Ti) modified SBN ceramics were investigated in this work. The ferroelectric to paraelectric transition temperature is found to be sensitive to the substitution degree of host ions. In particular, high values of permittivity at room temperature and a stable dielectric response in a wide range of temperature, along with low values of dielectric losses, are reported for the solid solution nominally involving the highest lattice vacancies required for electrical neutrality.
ISSN:	0370-1972 1521-3951
DOI:	10.1002/pssb.200301634