Semiconductors and Dielectrics

Physics of the Solid State

, Volume 42, Issue 1, pp 41-50

First online:

Optical phonon spectra of PbF2 single crystals

  • A. V. BazhenovAffiliated withInstitute of Solid State Physics, Russian Academy of Sciences
  • , I. S. SmirnovaAffiliated withInstitute of Solid State Physics, Russian Academy of Sciences
  • , T. N. FursovaAffiliated withInstitute of Solid State Physics, Russian Academy of Sciences
  • , M. Yu. MaksimukAffiliated withInstitute of Solid State Physics, Russian Academy of Sciences
  • , A. B. KulakovAffiliated withInstitute of Solid State Physics, Russian Academy of Sciences
  • , I. K. BdikinAffiliated withInstitute of Solid State Physics, Russian Academy of Sciences

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Abstract

The spectra of dipole-active optical phonons are measured for the cubic and orthorhombic phases of PbF2 single crystals. The frequencies and eigenvectors of normal modes in the Pnma orthorhombic phase are calculated. It is found that the spectrum of the cubic phase exhibits excess vibrational modes of the PbF2 orthorhombic phase.