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Ferroelectric properties of PbTiO3

Authors
Journal
Physica
0031-8914
Publisher
Elsevier
Publication Date
Volume
28
Issue
9
Identifiers
DOI: 10.1016/0031-8914(62)90075-7

Abstract

Abstract A new method for growing single crystals of ferroelectric PbTiO 3 is described. A mixture of TiO 2, Pb 3O 4 and KF in the ratio 1 : 2.5 : 6.5 is taken in a platinum crucible and heated to a temperature of about 900°C to 950°C for about 20 hours. The melt is then slowly cooled to room temperature. Flat plates of PbTiO 3 crystals are grown by this method. The dielectric properties of these single crystals of PbTiO 3 are studied in the temperature range 0–600°C. The Curie temperature has been found to be 495°C with a Curie constant of the order of 1.1 X 10 5. The conductivity of these samples shows an anomalous variation at and near the Curie temperature.

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