FZ 法による Mn 添加スピネルの結晶育成

勝亦 徹; 見富 大真; 宮島 貴子; 高橋 希緒; 福島 瞳; 相沢 宏明; 小室 修二

doi:10.14915/gsj.39_0_20

2017 Annual Meeting

DOI https://doi.org/10.14915/gsj.39_0_20

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Host: The Gemmological Society of Japan

Abstracts of Lectures at 2017 Annual Meeting of the Gemmological Society of Japan

Growth of Mn doped spinel crystals by FZ technique

*T. Katsumata, H. Mitomi, K. Miyajima, K. Takahashi, H. Fukushima, H. Aizawa, S. Komuro

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Keywords: spinel, photoluminescence, optical absorption, composition

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Pages 20

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Abstract

Mn doped spinel (Mg_xAl₂O_3+x) crystals have been grown by FZ technique with various starting compositions, x, from 0.3 to 1.7. Optical absorption and photoluminescence spectra from crystals grown under oxidized atmosphere are found to vary with composition. Crystals grown from Mg rich conditions are found to include MgO crystal based on X-ray powder diffraction patterns.

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