Assessment of oxygen in gallium arsenide by infrared local vibrational mode spectroscopy

@inproceedings{Schneider1989AssessmentOO,
  title={Assessment of oxygen in gallium arsenide by infrared local vibrational mode spectroscopy},
  author={Julius Schneider and Bernhard Dischler and H. Seelewind and P. M. Mooney and Jacek Lagowski and Masanori Kaneyama Manshion Matsui and David Robert Beard and Robert C. Newman},
  year={1989}
}
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. 

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