Processing and Application of Ceramics (Mar 2012)

Magnetic and ferroelectric phase coexistence in multiferroic PFW-PT ceramics

  • Bárbara Fraygola,
  • Adelino A. Coelho,
  • Ducinei Garcia,
  • José Antônio Eiras

Journal volume & issue
Vol. 6, no. 1
pp. 65 – 75

Abstract

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The multiferroic (1-x)PbFe2/3W1/3O3–xPbTiO3 solid solutions with various compositions x = 0, 0.10, 0.20 and 0.30 were investigated. The features of the relaxor-to-ferroelectric transition with increasing x were discussed based in connection with dielectric and ferroelectric proprieties. Different types of magnetic activity dependent on composition and temperature were found. The temperature of ferroelectric and antiferromagnetic phase coexistence was investigated in function of PT content, determining the temperature where each composition becomes multiferroic.

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