Title :
Synthesis, growth and characterisation of langasite crystals
Author :
Gheorghe, Lucian ; Georgescu, Serban ; Constantinescu, Serban ; Mateescu, I. ; Diamandescu, L. ; Borca, E.
Author_Institution :
Nat. Inst. for Lasers, Plasma & Radiat., Bucharest, Romania
Abstract :
Langasite family compounds have attracted a lot of attentions because of the combination of a number of nice material properties such as high piezoelectric coupling, temperature compensation and low acoustic loss. Another very important property is that the compound melts congruently so that large single crystals of langasite can be produced by the conventional Czochralski melt pulling technique. This makes the commercial scale production feasible. Synthesis, growth conditions, and structural considerations are presented.
Keywords :
crystal growth from melt; gallium compounds; germanium compounds; lanthanum alloys; piezoelectric materials; La3Ga5SiO14; conventional Czochralski melt pulling technique; growth conditions; high piezoelectric coupling; langasite crystals; low acoustic loss; structural considerations; synthesis; temperature compensation; Crystalline materials; Crystallization; Crystals; Laser theory; Laser transitions; Lattices; Optical materials; Photorefractive materials; Plasma materials processing; Powders;
Conference_Titel :
Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE
Print_ISBN :
0-7803-7582-3
DOI :
10.1109/ULTSYM.2002.1193556
