Damping of sound waves in the terahertz range and strength of the boson peak (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Damping of sound waves in the terahertz range and strength of the boson peak (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

Alternative label

• Bove, LE; Petrillo, C; Fontana, A; Sokolov, AP (2008)
  Damping of sound waves in the terahertz range and strength of the boson peak
  
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Bove, LE; Petrillo, C; Fontana, A; Sokolov, AP (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 128 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• \"[Bove, Livia E.; Petrillo, C.; Fontana, A.] Univ Roma La Sapienza, INFM CRS SOFT, I-00185 Rome, Italy; [Bove, Livia E.] Univ Paris 06, IMPMC, F-75015 Paris, France; [Petrillo, C.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy; [Fontana, A.] Univ Trent, Dipartimento Fis, I-38050 Trento, Italy; [Sokolov, A. P.] Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA (literal)

Titolo

• Damping of sound waves in the terahertz range and strength of the boson peak (literal)

Abstract

• By applying a new two-step line-shape analysis to inelastic neutron and x-ray scattering spectra of glassy systems, we were able to resolve the acoustic excitations from the low-frequency excess modes and to accurately estimate the damping of sound waves in the terahertz frequency range. Using this approach, we estimated the damping parameter for terahertz acoustic waves in a wide class of chemically different glasses and did a quantitative comparison of the results with prediction of theoretical models. By comparing the estimates of the mean-free path of the acoustic modes in different glasses and the corresponding boson peak strengths, we show the existence of a simple correlation between these two quantities. The relationship between attenuation of the terahertz acoustic modes, strength of the boson peak, and fragility is discussed. (C) 2008 American Institute of Physics. (literal)

Autore CNR

• LIVIA ELEONORA BOVE (Persona)
• ALDO FONTANA (Unità di personale esterno)
• CATERINA PETRILLO (Persona)

Insieme di parole chiave

• Parole chiave di "Damping of sound waves in the terahertz range and strength of the boson peak" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• LIVIA ELEONORA BOVE (Persona)
• CATERINA PETRILLO (Persona)
• ALDO FONTANA (Unità di personale esterno)

Insieme di parole chiave di

• Parole chiave di "Damping of sound waves in the terahertz range and strength of the boson peak" (Insieme di parole chiave)