期刊
APPLIED PHYSICS LETTERS
卷 80, 期 13, 页码 2314-2316出版社
AMER INST PHYSICS
DOI: 10.1063/1.1465522
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The interstitial to substitutional nitrogen atoms as a function of concentration in GaNAs were determined by nuclear reaction analysis utilizing the N-14(d,p)N-15 and N-14(d,alpha)C-12 reactions using ion channeling technique. The GaNAs films with mean nitrogen concentration between 0.3% and 3%, measured with secondary ion mass spectrometry and time-of-flight elastic recoil detection analysis, were grown using gas-source molecular-beam epitaxy. The fraction of nitrogen atoms occupying substitutional sites was observed to increase linearly with increasing nitrogen amount, while the concentration of interstitial nitrogen was nearly constant at 2x10(19) cm(-3) throughout the concentration region. Annealing at 750 degreesC decreases the concentration of interstitial nitrogen. (C) 2002 American Institute of Physics.
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