Phase Transitions in (CH_{3}NH_{3})_{5}Bi_{2}X_{11} (X=Cl, Br) Crystals

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

Abstracts

EN

Electric properties of (CH_{3}NH_{3})_{5}Bi_{2}Cl_{11} and (CH_{3}NH_{3})_{5}Bi_{2}Br_{11} single crystals in the direction of the crystallographic b-axis were studied. The samples tested were natural crystal seeds in the form of thin plates, whose crystallographic b-axis coincides with the normal to the plate. Measurements of the pyroelectric coefficient were performed near the high temperature phase transition and spontaneous polarization from the paraelectric phase down to helium temperature. The attempt of explanation of the anomalous electric properties of these crystals has been presented.

Keywords

EN

77.70.+a

Discipline

• 77.70.+a: Pyroelectric and electrocaloric effects

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1993
• Volume: 84
• Issue: 6
• Pages: 1085-1091

Dates

published

1993-12

received

1993-04-30

(unknown)

1993-07-20

Contributors

author

H. Pykacz

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

author

J. Mróz

• 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

Identifiers

DOI

10.12693/APhysPolA.84.1085