Home
For authors
Submission status

Current
Archive (English)
Archive
   Volumes 81-92
   Volumes 41-60
   Volumes 21-40
   Volumes 1-20
   Volumes 61-80
      Volume 80
      Volume 79
      Volume 78
      Volume 77
      Volume 76
      Volume 75
      Volume 74
      Volume 73
      Volume 72
      Volume 71
      Volume 70
      Volume 69
      Volume 68
      Volume 67
      Volume 66
      Volume 65
      Volume 64
      Volume 63
      Volume 62
      Volume 61
Search
VOLUME 66 (1997) | ISSUE 12 | PAGE 817
Interaction of optical phonons with anisotropic imperfections
Inelastic (Raman) light scattering by phonons interacting with anisotropic imperfections has been investigated. Three different kind of disorder-induced defects (point, linear and planar) have been considered. The optical phonon width and lineshape are found to be essentially dependent on the dimension of the imperfections. There is a close correspondence between the scale of the imperfection and the phonon lineshape observed in the Raman scattering experiments. Dependence of the phonon frequency shift and width on the defect concentrations is calculated and critical concentrations are defined under which the optical phonon cannot be observed anymore. PACS: 63.20.Mt