Influence of Defects on Dielectric Properties of (CH_{3}NH_{3})_{5}Bi_{2}X_{11} (x=Cl, Br) Crystals

• Authors: J. Μróz , H. Pykacz , R. Jakubas
• Languages of publication: EN

Abstracts

EN

Influence of defects on ferroelectric properties of the (CH_{3}ΝΗ_{3})_{5}Bi_{2}Χ_{11} (Χ = Cl, Br) crystals in the vicinity of ferro-paraelectric phase transition was investigated. γ-irradiation of both crystals insignificantly shifts Tc towards higher temperature. The substitution of chlorine atoms by iodine ones in the (CH_{3}ΝΗ_{3})_{5}Bi_{2}Cl_{11} crystal drastically reduces the magnitude of the dielectric permittivity but does not influence on the temperature behaviour of the spontaneous polarization.

Keywords

EN

77.70.+a

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 88
• Issue: 2
• Pages: 369-374

Dates

published

1995-08

received

1995-01-03

(unknown)

1995-03-31

Contributors

author

J. Μróz

• Institute of Physics, Technical University of Wrocław, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

H. Pykacz

• Institute of Physics, Technical University of Wrocław, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

R. Jakubas

• Institute of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland