Mie scattering in ferroelectrics with diffuse phase transitions


Yilmaz S. , MAMEDOV A., SAHAN H., GUNEL G.

FERROELECTRICS, cilt.291, ss.177-186, 2003 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 291
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1080/00150190390222673
  • Dergi Adı: FERROELECTRICS
  • Sayfa Sayısı: ss.177-186

Özet

A computer model of light scattering from the domain structure of Pb3MgNb3O9 (PMN) was obtained by the T-matrix method. First we discuss numerical aspects of T-matrix computations specific for ellipsoids and present results of benchmark computations for a simple ellipsoid model. Then we report results of extensive computations for poly-disperse, randomly oriented ellipsoids with the refractive index of PMN [2.15 + ki, ( k = 0.01, 0.008, 0.015)] semi-axis ratios of 1/2, 1/1.5, 1/3, 1/4 and effective size parameters ranging from 0 to 15. These computations parallel to our previous study of light scattering by poly-disperse, randomly oriented spheroids are used to compare scattering properties of two classes of particles.