Portal de Periódicos da CAPES

Growth of Ca3(Li,Nb,Ga)5O12 garnet crystals from stoichiometric melts

1997; Elsevier BV; Volume: 171; Issue: 3-4 Linguagem: Inglês

10.1016/s0022-0248(96)00679-3

1873-5002

Young Moon Yu, Valery I. Chani, Kiyoshi Shimamura, Tsuguo Fukuda,

Solid State Laser Technologies

Ca3LixNb(1.5 + x)Ga(3.5 − 2x)O12 garnets were synthesized and the conditions of the crystal growth are established. The measured lattice constants are about 12.54 Å irrespective of x. It was found that the Ca3Li0.275Nb1.775Ga2.95O12 garnet melts congruently at about 1450°C. Transparent and bubble-free crystals of x = 0.25 and 0.275 were grown by both modified micro-pulling down and Czochralski techniques in air using Pt crucibles. Results of solid state reaction data of other garnets are also discussed. An absorption spectrum is also reported.