Assessment of oxygen in gallium arsenide by infrared local vibrational mode spectroscopy
Assessment of oxygen in gallium arsenide by infrared local vibrational mode spectroscopy
复制标题
红外局域振动模式光谱法评估砷化镓中的氧
DOI：
10.1063/1.100691
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发表时间：
1989
影响因子：
4
通讯作者：
R. Newman
中科院分区：
文献类型：
--
作者：
J. Schneider;B. Dischler;H. Seelewind;P. Mooney;J. Lagowski;M. Matsui;D. Beard;R. Newman
在掺杂18O的砷化镓中，出现在715和845 cm−1处的两条红外局域振动模（LVM）吸收线分别移动到679和802 cm−1，证明这些线是由氧杂质的振动引起的。715 cm−1的谱线显示了一个三重态的69，71 Ga同位素精细结构，与准取代的VAs‐O中心的预期一致。845 cm−1的谱线显示为一个紧密排列的双峰，预期是一个键合的间隙氧原子。
Two infrared local vibrational mode (LVM) absorption lines occurring at 715 and 845 cm−1 shift to 679 and 802 cm−1 in gallium arsenide doped with 18O, proving that the lines arise from the vibrations of oxygen impurities. The 715 cm−1 line exhibits a triplet 69,71Ga isotope fine structure consistent with that expected from a quasi‐substitional VAs‐O center. The 845 cm−1 line appears as a closely spaced doublet expected for a bonded interstitial oxygen atom.