Temperature Dependence of the Brillouin Frequency Shift and the Linewidth of the LA Mode in the Ferroelectric Phase of PZT-x (PbZr1-xTixO3)

YURTSEVEN H. H., Korkmaz C. S., KİRACI A.

Joint IEEE International Symposium on the Applications of Ferroelectric / International Symposium on Integrated Functionalities / Piezoelectric Force Microscopy Workshop (ISAF/ISIF/PFM), Singapore, Singapur, 24 - 27 Mayıs 2015, ss.1-4 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Singapore
  • Basıldığı Ülke: Singapur
  • Sayfa Sayıları: ss.1-4
  • Anahtar Kelimeler: Ferroelectricity, Brillouin frequency, order parameter, damping constant (FWHM), PbZr1-xTixO3, DAMPING CONSTANT, RAMAN, RELAXATION, TRANSITION, BEHAVIOR
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The temperature dependence of the Brillouin frequency and the linewidth of the LA mode is studied for the concentration of x=0.45 in the ferroelectric phase of PbZr1-xTixO3 (PZT-x) within the temperature range of 443 to 656 K (T-C=657 K). Using the experimental data for the Brillouin frequency of the LA mode as an order parameter below T-C the temperature dependence of the linewidth (FWHM) is calculated by the pseudospin-phonon coupled model and the energy fluctuation model for the lead titanate zirconate (x=0.45). Additionally, the activation energies are compared from the damping constant (linewidth) using both models for the temperature range of 443 to 656 K in the ferroelectric phase of PbZr1-xTixO3.