Abstract
AbstractThe origin of the Boson peak was investigated using Raman spectroscopy and ab initio calculations. Low frequency Raman active vibrational modes of different branchy‐, ring‐ and cage‐like AsmSn nanoclusters were calculated and compared to experimentally determined Raman spectra of AsxS100‐x glasses with different compositon. A good correlation was found between the spectral features and the calculated Raman modes. The possible structural nature of the Boson peak in arsenic chalcogenides is proposed and discussed. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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