%0 Journal Article %T The vibrational excitations of glasses in the boson-peak region: application to borates %+ Laboratoire des colloïdes, verres et nanomatériaux (LCVN) %A Vacher, René %A Ruffle, Benoit %A Hehlen, Bernard %A Guimbretiere, Guillaume %A Simon, Guilhem %A Courtens, Eric %< avec comité de lecture %Z LCVN:08-221 %@ 1753-3562 %J Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B %I Society of Glass Technology %V 49 %P 19-25 %8 2008 %D 2008 %Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] %Z Physics [physics]/Condensed Matter [cond-mat]/Disordered Systems and Neural Networks [cond-mat.dis-nn]Journal articles %X There exists a special interest in investigating acoustical and optical vibrations of glasses in the one THz frequency region. The main experimental tools that are used to this effect are briefly discussed. The current understanding of the boson-peak vibrations and of their resonance with acoustic branches are explained. Specific new results on the origin of the boson peak and on the end of acoustic branches are presented for borates. %G English %L hal-00512610 %U https://hal.science/hal-00512610 %~ CNRS %~ UNIV-MONTP2 %~ LCVN %~ UNIV-MONTPELLIER %~ UM1-UM2