Optical study on the phase transition of Pb0.92La0.08(Zr0.65Ti0.35)0.98O3

T. Asahi*, Y. Itagaki, H. Utsumi, H. Yoshii, I. Kamiya, M. Ichiki, M. Takahashi, J. Kobayashi


研究成果: Article査読


Optical gyration G, birefringence Δn and their electric-field E dependences of transparent ceramics of Pb0.92La0.08(Zr0.65Ti0.35)0.98O3 were studied by using high accuracy universal polarimeter (HAUP) in a temperature range between 10°C and 130°C. The high-temperature phase manifested neither spontaneous nor induced G, while the low-temperature phase did characteristic hysteresis loops of G and Δn with respect to E. Group-theoretical consideration of gyro-optical properties of both phases led us to the conclusion that the high- and low-temperature phases are cubic Th and trigonal C3, the same as found in Pb0.92La0.08(Zr0.70Ti0.30)0.98O3 ceramics. The free-energy function of both phases was determined by using these electro-optic effects. It is found that both ceramics undergo the same phase transition and manifest similar dielectric and optical properties.

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出版ステータスPublished - 1998

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学


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