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

Volume

1

fYear

2002

fDate

8-11 Oct. 2002

Firstpage

965

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE

ISSN

1051-0117

Print_ISBN

0-7803-7582-3

Type

conf

DOI

10.1109/ULTSYM.2002.1193556

Filename

1193556