Ferroelectric and magnetic phase transitions in multiferroic PbFe0.5Ta0.5O3-PbTiO3 solid solutions

Author

Blazhevich, A.V. ; Raevski, I.P. ; Kubrin, S.P. ; Sitalo, E.I. ; Raevskaya, S.I. ; Titov, V.V. ; Sarychev, D.A. ; Malitskaya, M.A. ; Zakharchenko, I.N.

Author_Institution

Res. Inst. of Phys. & Phys. Dept., Southern Fed. Univ., Rostov on Don, Russia

fYear

2012

fDate

9-13 July 2012

Firstpage

1

Lastpage

4

Abstract

Dielectric, X-ray, piezoelectric and Mossbauer studies of highly-resistive Li-doped (1-x)PbFe_0.5Ta_0.5O₃-(x)PbTiO₃ ceramics from the 0<; x <;0.3 range fabricated by solid state synthesis and usual sintering have been carried out. Addition of PbTiO₃ to PbFe_0.5Ta_0.5O₃ increases the temperature T_m of the permittivity maximum, decreases the diffusion of this maximum and lowers the Neel temperature T_N. However above a certain compositional threshold fast lowering of T_N stops and a new magnetic state with comparatively high (~50 K) transition temperature becomes stable in a rather wide compositional range.

Keywords

Mossbauer effect; Neel temperature; X-ray diffraction; diffusion; ferroelectric ceramics; ferroelectric transitions; lead compounds; lithium; magnetic transitions; multiferroics; permittivity; sintering; solid solutions; Mossbauer spectra; Neel temperature; PbFe_0.5Ta_0.5O₃-PbTiO₃:Li; X-ray diffraction; compositional threshold; dielectric properties; diffusion; ferroelectric phase transitions; highly-resistive ceramics; magnetic phase transitions; magnetic state; multiferroic solid solutions; permittivity; sintering; solid state synthesis; Ceramics; Dielectrics; Magnetoelectric effects; Solids; Temperature dependence; Temperature distribution; Temperature measurement; Mössbauer effect; lead iron tantalate; multiferroics; phase transitions; solid solutions;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics held jointly with 2012 European Conference on the Applications of Polar Dielectrics and 2012 International Symp Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (ISAF/ECAPD/PFM), 2012 Intl Symp

Conference_Location

Aveiro

Print_ISBN

978-1-4673-2668-1

Type

conf

DOI

10.1109/ISAF.2012.6297783

Filename

6297783