Title :
Ferroelectric phase transition in nanostructured BaTiO3 studied by Raman scattering and second harmonic generation
Author :
Pugachev, A.M. ; Kovalevskii, V.I. ; Malinovsky, V.K. ; Surovtsev, N.V. ; Borzdov, Yu.M.
Author_Institution :
Inst. of Autom. & Electrometry, Novosibirsk, Russia
Abstract :
It is widely known that the ferroelectric phase transition from tetragonal to cubic phase in BaTiO3 ceramics and powders is strongly suppressed compared with the crystals. In our study the features of this transition were investigated by low-frequency Raman scattering and second harmonic generation (SHG) techniques. The obtained results of Raman and SHG experiments are interpreted as a relaxor-like behavior of BaTiO3 pressed powder.
Keywords :
Raman spectra; barium compounds; ferroelectric ceramics; ferroelectric transitions; nanoparticles; optical harmonic generation; relaxor ferroelectrics; BaTiO3; BaTiO3 pressed powder; SHG; ferroelectric phase transition; low-frequency Raman scattering; nanostructured ceramics; powders; relaxor-like behavior; second harmonic generation; tetragonal-cubic phase transition; Ceramics; Crystals; Frequency conversion; Powders; Raman scattering; Temperature measurement; Titanium compounds; Barium titanate; Raman scattering; second harmonic generation;
Conference_Titel :
Applications of Ferroelectric and Workshop on the Piezoresponse Force Microscopy (ISAF/PFM), 2013 IEEE International Symposium on the
Conference_Location :
Prague
DOI :
10.1109/ISAF.2013.6748695
