Paper Title:
Composition Dependent Resonant Raman Scattering in Al0.33Ga0.67As/InxGa1-xAs1-yNy Multiquantum Wells
  Abstract

InxGa1-xAs1-yNy/Al0.33Ga0.67As multiquantum wells grown by plasma-assisted molecular beam epitaxy are studied by resonant inelastic light scattering. Sharp vibration modes have been observed at 323, 402, 454 and 501 cm-1. Their intensities resonate at the barrier bandgap reduced by the presence of N. Their resonance energies reveal the influence of the N concentration on the barrier gap at the multiquantum well interfaces. These peaks are interpreted in terms of local vibrations involving the pairing of N atoms, which seems to occur mostly at the quantum well interfaces due to preferential bonding of N to Al.

  Info
Periodical
Edited by
Dragan P. Uskokovic, Slobodan K. Milonjic and Dejan I. Rakovic
Pages
17-22
DOI
10.4028/www.scientific.net/MSF.518.17
Citation
S. Lazić, J.M. Calleja, R. Hey, K. Ploog, "Composition Dependent Resonant Raman Scattering in Al0.33Ga0.67As/InxGa1-xAs1-yNy Multiquantum Wells", Materials Science Forum, Vol. 518, pp. 17-22, 2006
Online since
July 2006
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$32.00
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