Dielectric spectra of a new relaxor ferroelectric system Ba2LnTi2Nb3O15 (Ln=La, Nd)

Details Dielectric spectra of a new relaxor ferroelectric system Ba2LnTi2Nb3O15 (Ln=La, Nd) Dielectric spectra of a new relaxor ferroelectric system Ba2LnTi2Nb3O15 (Ln=La, Nd)

2004-06-16

arxiv.org/abs/cond-mat/0406364v1

J. Eur. Ceram. Soc. 25, 3069-3073 (2005)

Physics

Condensed Matter

Materials Science

subm. to J. Eur. Ceram. Soc., proceedings of Electroceramics IX conference, Cherbourg 2004

Scientific paper

New relaxor ferroelectric system has been synthesized. BLTN exhibits a smeared maximum of permittivity, characteristic of classic relaxor behaviour, with a peak shift from 185 K at 100 Hz to 300 K at 1 GHz. BNTN undergoes a first order ferroelectric phase transition at 389 K and BLNTN exhibits both a ferroelectric phase transition at 274 K and relaxor behaviour at higher temperatures.

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