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

Identifizierung von Sauerstoff in Gallium Arsenid durch Infrarot-Schwingungsspektroskopie
 
: Schneider, J.; Mooney, P.M.; Lagowski, J.; Matsui, M.; Beard, D.R.; Newman, R.C.; Dischler, B.; Seelewind, H.

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Applied Physics Letters 54 (1989), Nr.15, S.1442-1444 : Abb.,Lit.
ISSN: 0003-6951 (Print)
ISSN: 1077-3118
Englisch
Zeitschriftenaufsatz
Fraunhofer IAF ()
elektrische Aktivität; Fourier-Spektroskopie; GaAs; Sauerstoff

Abstract
Two infrared local vibration mode (LVM) absorption lines occurring at 715 and 845 cm high minus 1 shift to 679 and 802 cm high minus 1 in gallium arsenide doped with high 18 O, proving that the lines arise from the vibrations of oxygen impurities. The 715 cm high minus 1 line exhibits a triplet high 69,71 Ga isotope fine structure consistent with that expected from a quasi-subsitutional V sub As-O center. The 845 cm high minus 1 line appears as a closely spaced doublet expected for a bonded interstitial oxygen atom.

: http://publica.fraunhofer.de/dokumente/PX-4747.html