Disorder-induced light scattering in solids: The origin of the Boson peak in glasses

Theoretical models relative to Raman scattering in disordered solids are discussed and compared with the available experimental evidence. In particular, experimental data relative to the Boson peak integrated intensity and computer simulations on three-dimensional site percolators, allow us to infer...

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Veröffentlicht in:	Philosophical magazine. B, Physics of condensed matter. Structural, electronic, optical, and magnetic properties. Physics of condensed matter. Structural, electronic, optical, and magnetic properties., 1995-04, Vol.71 (4), p.761-769
Hauptverfasser:	Benassi, P., Fontana, A., Frizzera, W., Montagna, M., Mazzacurati, V., Signorelli, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Disordered solids Exact sciences and technology Infrared and raman spectra and scattering Lattice dynamics Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Physics Vibrational states in disordered systems
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Beschreibung
Zusammenfassung:	Theoretical models relative to Raman scattering in disordered solids are discussed and compared with the available experimental evidence. In particular, experimental data relative to the Boson peak integrated intensity and computer simulations on three-dimensional site percolators, allow us to infer that the relevant mechanism that produces the peak is disorder-induced light scattering from acoustic modes of a disordered structure.
ISSN:	1364-2812 0958-6644 0141-8637 1463-6417
DOI:	10.1080/01418639508238566