Polar precursor ordering in BaTiO3 detected by resonant piezoelectric spectroscopy | Zendy

Oktay Aktas | Zendy; Michael A. Carpenter | Zendy; Ekhard K. H. Salje | Zendy

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Polar precursor ordering in BaTiO3 detected by resonant piezoelectric spectroscopy

Author(s) -

Oktay Aktas,

Michael A. Carpenter,

Ekhard K. H. Salje

Publication year - 2013

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4823576

Subject(s) - polar , piezoelectricity , ferroelectricity , multiferroics , excitation , materials science , spectroscopy , nanostructure , phase (matter) , condensed matter physics , nuclear magnetic resonance , nanotechnology , optoelectronics , chemistry , physics , composite material , dielectric , organic chemistry , quantum mechanics , astronomy

An experimental method, Resonant Piezoelectric Spectroscopy (RPS), is introduced for the detection of polar precursor effects in ferroelectric and multiferroic materials. RPS is based on the excitation of elastic waves through the piezoelectric effect in a sample. As the intensity of these waves is significantly amplified through mechanical resonances, RPS is very sensitive to the development of polar nanostructures. Using RPS, we identify polar nanostructures in BaTiO3 as a precursor in the cubic phase. Results are compatible with polar tweed structures which persist up to 613 K. This temperature is much higher than previously reported.

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