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OPTICAL INVESTIGATION OF A Pb2ScTaO6 CRYSTAL WITH A ROOM TEMPERATURE PHASE TRANSITION

Y. Sarov1,* , V. Marinova1, M. Gospodinov2, S. Sainov1

Affiliation

  1. Central Laboratory of Optical Storage and Processing of Information, Bulgarian Academy of Science, P.O. Box 95, 1113 Sofia, Bulgaria
  2. Institute of Solid State Physics, Bulgarian Academy of Science 72, Tzarigradsko chausse Blvd. 1784 Sofia, Bulgaria

Abstract

The optical properties of a Pb2ScTaO6 single crystal are investigated in the room temperature phase transition region. The measured refractometric data are used to determine the average temperature and the interval of the diffuse phase transition -15 ± 4˚C. The dependence of the crystal's molar polarizability on temperature is determined from the refractometric results..

Keywords

Ferroelectrics phase transition, Refractive index.

Submitted at: Dec. 9, 2004
Accepted at: Jan. 26, 2005

Citation

Y. Sarov, V. Marinova, M. Gospodinov, S. Sainov, OPTICAL INVESTIGATION OF A Pb2ScTaO6 CRYSTAL WITH A ROOM TEMPERATURE PHASE TRANSITION, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 1, pp. 537-540 (2005)