Light scattering in ferroelastic lead phosphate-type crystals due to domain structure


Yilmaz S. , Babur Y., Karadag F. , Mamedov A.

FERROELECTRICS, cilt.307, ss.39-44, 2004 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 307
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1080/00150190490492655
  • Dergi Adı: FERROELECTRICS
  • Sayfa Sayıları: ss.39-44

Özet

Ferroelastic lead phosphate-type (LP) crystals undergo a sequence of phase transition R (3) over barm-C2/c and R (3) over barm-P2(1)/c[1]. The ferroic domain pattern depends on the spontaneous strain which can be diluted by the chemical composition. Light scattering from ferroelastic materials and its computer model was presented by T-matrix method at the structural phase transition. We discussed numerical procedure of T-matrix method and improved new computer program to calculate the scattering properties for domain structure of LP-type ferroelastic materials. Then, we report results of these calculations for polydispersive, randomly oriented spheroid with a refractive index, different semi-axis ratios and different size parameters. The calculation results are very close to our previous study of light scattering by spherical, cylindrical structures and convex particles.