DocumentCode
1922674
Title
Optical characteristics of Pb5Al3F19 -type crystals
Author
Von Der Mühll, R. ; Ravez, J. ; Andriamampianina, V. ; Chaminade, J.P. ; Simon, A. ; Abrahams, S.C.
Author_Institution
Lab. de Chimie du Solide, Bordeaux I Univ., Talence, France
fYear
1992
fDate
30 Aug-2 Sep 1992
Firstpage
364
Lastpage
366
Abstract
Large colorless crystal of the Pb5Al3F19 type with dimensions approaching 1 cm3, have been grown in sealed platinum tubes by the Bridgman technique. The phase transitions in Pb5Al3F19 have been studied by optical microscopy on crystals oriented along different crystallographic directions. Ferroelastic domains have been observed; a reversible and reproducible ferroelastic-prototype transition has been shown. The thermal dependence of the birefringence has also been studied. The ferroic properties of Pb5Al3F19 are discussed in relation to the crystal symmetry
Keywords
birefringence; crystal growth from melt; crystal orientation; ferroelastic transitions; ferroelectric materials; lead compounds; Bridgman technique; Pb5Al3F19; birefringence; crystal growth from melt; crystal orientation; crystal symmetry; crystallographic directions; ferroelastic domains; ferroelastic transition; Argon; Birefringence; Cooling; Crystals; Lead; Optical interferometry; Optical polarization; Powders; Solids; Temperature distribution;
fLanguage
English
Publisher
ieee
Conference_Titel
Applications of Ferroelectrics, 1992. ISAF '92., Proceedings of the Eighth IEEE International Symposium on
Conference_Location
Greenville, SC
Print_ISBN
0-7803-0465-9
Type
conf
DOI
10.1109/ISAF.1992.300710
Filename
300710
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