Sound attenuation and anharmonic damping in solids with correlated disorder

• Veröffentlicht in: Condensed Matter Physics
• Datum: 2010
• Hauptverfasser: Schirmacher, W., Tomaras, C., Schmid, B., Baldi, G., Viliani, G., Ruocco, G., Scopigno, T.
• Format: Artikel
• Sprache: English
• Veröffentlicht: Інститут фізики конденсованих систем НАН України 2010
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/32096
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Sound attenuation and anharmonic damping in solids with correlated disorder / W. Schirmacher, C. Tomaras, B. Schmid, G. Baldi, G. Viliani, G. Ruocco, T. Scopigno // Condensed Matter Physics. — 2010. — Т. 13, № 2. — С. 23606: 1-6. — Бібліогр.: 21 назв. — англ.

We study via self-consistent Born approximation a model for sound waves in a disordered environment, in which the local fluctuations of the shear modulus G are spatially correlated with a certain correlation length ξ. The theory predicts an enhancement of the density of states over Debye's ω2 l...