Ferroelectric, piezoelectric, pyroelectric and Raman spectroscopy studies on BaTi 0.9 (Fe 1/2 Nb 1/2 ) 0.1 O 3  ceramic | Zendy

Abdelkafi Z. | Zendy; Abdelmoula N. | Zendy; Khemakhem H. | Zendy; Simon A. | Zendy; Maglione M. | Zendy

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Ferroelectric, piezoelectric, pyroelectric and Raman spectroscopy studies on BaTi 0.9 (Fe 1/2 Nb 1/2 ) 0.1 O 3 ceramic

Author(s) -

Abdelkafi Z.,

Abdelmoula N.,

Khemakhem H.,

Simon A.,

Maglione M.

Publication year - 2008

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200824142

Subject(s) - pyroelectricity , ferroelectricity , materials science , dielectric , ceramic , raman spectroscopy , piezoelectricity , analytical chemistry (journal) , phase transition , hysteresis , atmospheric temperature range , ferroelectric ceramics , piezoelectric coefficient , curie temperature , transition temperature , nuclear magnetic resonance , mineralogy , condensed matter physics , optoelectronics , optics , composite material , chemistry , physics , thermodynamics , superconductivity , ferromagnetism , chromatography

The hysteresis, piezoelectric and pyroelectric properties were measured in the temperature range near the ferroelectric–paraelectric phase transition. The BaTi 0.9 (Fe 1/2 Nb 1/2 ) 0.1 O 3 ceramic exhibits typical ferroelectric P – E hysteresis behavior with a remanant polarization, P r , of about 7.52 μC/cm 2 detected at 155 K. The electromechanical properties of this composition were measured using the resonance method. The ceramic provides high piezoelectric performance at the temperature of transition ( T max = 216 K): the piezoelectric constant is d 31 = 140 pC/N and the electromechanical coupling factor was k P = 22%. The pyroelectric study confirms the dielectric and ferroelectric measurements. The pyroelectric coefficient is about 125 nC/cm 2 K at T max . Raman spectra of BaTi 0.9 (Fe 1/2 Nb 1/2 ) 0.1 O 3 ceramic were taken at various temperatures and measured over the wave number range from 150 to 1300 cm –1 . (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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