Crystal-Optic Observation of High-Pressure Phase Transition in Barium Sodium Niobate

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Author(s)

Abstract

The first observation of high-pressure phase transition in BNN is reported. Both ferroelastic domain pattern and the birefringence <I>Δn</I><SUB>xy</SUB> vanishes at 22.0±0.5 kbar and room temperature. The <I>dT</I><SUB>tr</SUB>⁄<I>dP</I> is positive and approximately equal to 8.6°C/kbar in the temperature range between −25°C and 75°C.

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 45(4), 1433-1434, 1978

    THE PHYSICAL SOCIETY OF JAPAN

Codes

  • NII Article ID (NAID)
    130003737545
  • Text Lang
    ENG
  • ISSN
    0031-9015
  • Data Source
    J-STAGE 
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