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Influence of Compressive Stress on Dielectric and Ferroelectric Properties of the(Na0.5Bi0.5)0.7Sr0.3TiO3 Ceramics

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, , Citation J Suchanicz et al 2013 IOP Conf. Ser.: Mater. Sci. Eng. 49 012038 DOI 10.1088/1757-899X/49/1/012038

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1 Institute of Physics, Pedagogical University, 30-084 Krakow, Poland

2 Institute of Solid State Physics, University of Latvia, LV-1063 Riga, Latvia

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1757-899X/49/1/012038

Abstract

Good quality lead-free ceramics of (Na0.5Bi0.5)0.7Sr0.3TiO3(NBTS30) have been produced by a solid phase sintering process. The dependence of dielectric and ferroelectric properties on the unaxial pressure (0–1200 bar) were investigated. A shift and decrease of maximum value of ε, decrease of the thermal hysteresis and coercive field and increase of polarization with increasing pressure were observed. The results were discussed in terms of an elastic changes in inter-ionic distances in a crystal structure and switching nanoregions under the action of pressure. The NBTS30 ceramic is expected to be a new promising candidate for lead-free electronic material.

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10.1088/1757-899X/49/1/012038