Abstract

Pb(Fe 1/2 Nb 1/2 )03-PbTiO 3 (PFNT) is a multiferroic compound having electric and magnetic orders. To further explore the structural nature of ferroic characteristics in this material, the dielectric properties and structures of Pb(Fe 1/2 Nb 1/2 ) 1−x Ti x O 3 (x=0.07 and 0.48) single crystals were investigated by a combination of temperature-dependent dielectric spectra, XRD, Raman and x-ray absorption fine-structure (XAFS) spectra. Both samples exhibit a frequency-dependent dielectric anomaly, which is significantly correlated to the local structure differences.

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