Difference in the relative intensities Raman of the perovskite PLT with temperature

• Published in: AIP conference proceedings Vol. 1627; no. 1
• Main Authors: Joya, M R, Fonseca, K M, Barba-Ortega, J
• Format: Conference Proceeding
• Language: English
• Published: Melville American Institute of Physics 05.11.2014
• Subjects: Amorphous materials; Anharmonicity; Charge distribution; Crystal structure; Crystallinity; Degree of crystallinity; Lead titanates; Mathematical analysis; Optical properties; Perovskites; Raman spectra; Reproducibility

La-modified PbTiO3 -based ceramics (PLT) are the subject of many studies. The experimental measurement and the theoretical calculation of Raman scattering intensities present a number of challenges. In the treatment of experimental data, anharmonic force fields permit the calculation of combination...