Bridgman growth of langasite‐type piezoelectric crystals

Abstract

(SNGS) were successfully grown by the modified Bridgman method. Among them, SGG crystals up to 2 inches were obtained with the multi-crucible industrial Bridgman furnace; SNGS crystal grown in any orientation direction other than along a-axis was realized. Commercially availability SGG boules and the advantage in SNGS crystal indicated that the modified Bridgman technique is a prospective method to realize the mass-production of the langasite-type crystals.

Growth and thermal properties of Sr3NbGa3Si2O14 single crystals

“…We have reported the growth of SNGS crystals using a o0 0 14-oriented LGS seed [11,12]. In the present work, the SNGS single crystal was grown with a o0 0 14-oriented SNGS seed, which was obtained from earlier experiments.…”

“…Among these ordered compounds, SNGS exhibits an exceptionally large electromechanical coupling factor and substantially high intrinsic acoustic Q-values [10]. SNGS single crystals have been grown by the Czochralski and Bridgman methods [5,11,12]. In the Czochralski method, due to the growth habit, SNGS crystals are always grown along the polar two-fold a-axis [5,13].…”

Bridgman growth of large-aperture yttrium calcium oxyborate crystal

“…In present work, 1% H 3 BO 3 excessive in synthesis process could compensate the composition loss during the sintering procedure; it was helpful for the growth of YCOB crystals. [10].…”

“…[9][10][11][12][13], however it is difficult to grow large size YCOB crystal with ordinary vertical Bridgman furnace. YCOB is a monoclinic biaxial crystal with structure belonging to the oncentrosymmetric space group of C m .…”

Bridgman Growth of New Nonlinear Optical Crystal (La1 − xSmx)3Ga5.5Nb0.5O14 for Quasi-Parametric Chirped Pulse Amplification

“…These crystals are important single crystals because they do not undergo a phase transition when they reach the melting point [19]. Nowadays, most of the langasite-type crystals are grown by the Czochralski method, and only a few of these crystals are grown by the Bridgman method, such as La 3 [20][21][22]. To the best of our knowledge, the LGN crystal has not reported to be grown by the Bridgman method.…”