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Lowering of relaxor transition temperature in Lead-based perovskites under pressure

Ramasesha, Sheela K and Radhika Rao, MV and Singh, AK and Umarji, AM (1996) Lowering of relaxor transition temperature in Lead-based perovskites under pressure. In: Materials Research Bulletin, 31 (09). pp. 1141-1147.

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The dielectric constants of lead iron niobate (PFN) and 40% lead zinc niobate (PZN) added to lead iron niobate (PFN0.6-PZN(0.4)) have been measured as a function of pressure up to 6 GPa under isothermal conditions between room temperature and 348 K. The relaxer transition temperature measured at 1 kHz excitation frequency varies at a rate -24.5 K/GPa for PFN and at a rate of - 28.8 K/GPa for the PFN0.6-PZN(0.4) composition.

Item Type: Journal Article
Publication: Materials Research Bulletin
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: ceramics;high pressure;dielectric properties;phase transitions
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 07 Dec 2009 06:56
Last Modified: 19 Sep 2010 05:29
URI: http://eprints.iisc.ac.in/id/eprint/19709

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