Single-crystal growth of langasite (La3Ga5SiO14) by the vertical Bridgman (VB) method in air and in an Ar atmosphere

Toshinori Taishi; Takayuki Hayashi; Tatsuo Fukami; Keigo Hoshikawa; Ichiro Yonenaga

doi:10.1016/j.jcrysgro.2007.02.025

Single-crystal growth of langasite (La₃Ga₅SiO₁₄) by the vertical Bridgman (VB) method in air and in an Ar atmosphere

Toshinori Taishi, Takayuki Hayashi, Tatsuo Fukami, Keigo Hoshikawa, Ichiro Yonenaga

Materials Design Division

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Piezoelectric langasite (La₃Ga₅SiO₁₄, LGS) single crystals were grown by the vertical Bridgman (VB) method in air and in an Ar atmosphere. In the Ar atmosphere, a colorless-transparent crack-free LGS single crystal, 1 in. in diameter, was grown using raw material with a slightly Ga-rich composition, while in air an orange-colored transparent LGS crystal was grown. Any other phases could not be detected in the crystals, which may suggest that only a few Ga atoms evaporated from the melt during the growth in an Ar atmosphere. The resistivity of an LGS crystal grown in an Ar atmosphere was higher than that grown in air.

Original language	English
Pages (from-to)	4-6
Number of pages	3
Journal	Journal of Crystal Growth
Volume	304
Issue number	1
DOIs	https://doi.org/10.1016/j.jcrysgro.2007.02.025
Publication status	Published - 2007 Jun 1

Keywords

A2. Bridgman technique
A2. Growth from melt
A2. Single-crystal growth
B1. Oxide
B2. Piezoelectric materials

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

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title = "Single-crystal growth of langasite (La3Ga5SiO14) by the vertical Bridgman (VB) method in air and in an Ar atmosphere",

abstract = "Piezoelectric langasite (La3Ga5SiO14, LGS) single crystals were grown by the vertical Bridgman (VB) method in air and in an Ar atmosphere. In the Ar atmosphere, a colorless-transparent crack-free LGS single crystal, 1 in. in diameter, was grown using raw material with a slightly Ga-rich composition, while in air an orange-colored transparent LGS crystal was grown. Any other phases could not be detected in the crystals, which may suggest that only a few Ga atoms evaporated from the melt during the growth in an Ar atmosphere. The resistivity of an LGS crystal grown in an Ar atmosphere was higher than that grown in air.",

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author = "Toshinori Taishi and Takayuki Hayashi and Tatsuo Fukami and Keigo Hoshikawa and Ichiro Yonenaga",

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AU - Taishi, Toshinori

AU - Hayashi, Takayuki

AU - Fukami, Tatsuo

AU - Hoshikawa, Keigo

AU - Yonenaga, Ichiro

PY - 2007/6/1

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