Effect of high-temperature annealing on the internal friction and optical transmittance of single crystal gallium oxide

被引：0

作者：

Kaminskii, Vladimir V. ^{[1
]}

Yu Panov, Dmitrii Yu ^{[1
]}

Spiridonov, Vladislav A. ^{[1
]}

Bauman, Dmitrii A. ^{[1
]}

Kalganov, Dmitrii A. ^{[2
]}

Shcheglov, Mikhail P. ^{[2
]}

Romanov, Alexey E. ^{[1
]}

机构：

[1] ITMO University, St. Petersburg

[2] Ioffe Institute, St. Petersburg

来源：

Materials Physics and Mechanics | 2024年 / 52卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

gallium oxide; internal friction; optical transmittance; single crystal; vacancies; Young’s modulus;

D O I：

10.18149/MPM.5252024_5

中图分类号：

学科分类号：

摘要：

The effect of high-temperature annealing on the structure and properties of single crystal β-phase gallium oxide is reported in this work. The investigated sample obtained by cleaving from a bulk β-Ga2O3 ingot grown by the edge-defined film-fed growth method. Some of the samples were annealed in an oxygen-containing atmosphere at temperatures up to T = 1673 K. The temperature dependences of internal friction and dynamic modulus of elasticity were obtained by the composite oscillator method at a frequency of 100 kHz. Optical absorption spectra were investigated in the wavelength range from 200 nm to 2 µm. It was found that annealing and redistribution of gallium vacancies in beta-phase gallium oxide crystals is accompanied by simultaneous changes in the internal friction in the temperature region around 290 K and in the optical spectrum in the infrared region. © V.V. Kaminskii, D.Yu. Panov, V.A. Spiridonov, D.A. Bauman, D.A. Kalganov, M.P. Scheglov, A.E. Romanov, 2024.

引用

页码：48 / 54

页数：6

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