Effect of Hydrostatic Pressure on the Phase Transitions in Ferroelectric (CH3NH3)5Bi2Cl11 (MAPCB) and (CH3NH3)5Bi2Br11 (MAPBB).

  • Gesi Kazuo
    Department of Materials Science, College of Science and Engineering, Iwaki Meisei University, Iwaki 970
  • Iwata Makoto
    Department of Applied Physics, School of Engineering, Nagoya University, Nagoya 464–01
  • Ishibashi Yoshihiro
    Department of Applied Physics, School of Engineering, Nagoya University, Nagoya 464–01

Bibliographic Information

Other Title
  • Effect of Hydrostatic Pressure on the P
  • Effect of Hydrostatic Pressure on the Phase Transitions in Ferroelectric (CH<sub>3</sub>NH<sub>3</sub>)<sub>5</sub>Bi<sub>2</sub>Cl<sub>11</sub>(MAPCB) and (CH<sub>3</sub>NH<sub>3</sub>)<sub>5</sub>Bi<sub>2</sub>Br<sub>11</sub>(MAPBB)

Search this article

Description

Effect of hydrostatic pressure on the phase transitions and dielectric anomalies has been studied for ferroelectric (CH3NH3)5Bi2Cl11 (MAPCB) and (CH3NH3)5Bi2Br11 (MAPBB) in a pressure range up to about 650, MPa. The Curie temperatures Tc (311, K in MAPCB, 307, K in MAPBB at 0, MPa) increase with increasing pressure with initial pressure coefficients (dTc/dp)_{p=0} of 0.063, K/MPa and 0.060, K/MPa for MAPCB and MAPBB, respectively. In MAPCB, the temperature at which the dielectric constant shows a diffuse anomaly (around 160, K at 0, MPa) increases linearly with increasing pressure with a rate of 0.057, K/MPa. The dielectric anomaly becomes more and more diffusive as pressure increases.

Journal

Citations (2)*help

See more

References(34)*help

See more

Details 詳細情報について

Report a problem

Back to top