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.

PDF LOWERING_OF_RELAXOR.pdf - Published Version Restricted to Registered users only Download (409kB) | Request a copy

Abstract

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

Actions (login required)

View Item