3 papers
cond-mat.supr-con2004
Low-q dispersion of transverse acoustic phonons in YBaCuO
Andrea Gauzzi, Matteo D'Astuto, Francesca Licci +2
High-resolution (=1.3 meV) inelastic X-ray scattering (IXS) in optimally doped untwinned YBaCuO single crystals show that the dispersion of transverse acoustic…
cond-mat.dis-nn2002
Experimental evidence for high frequency transverse-like excitations in glasses
T. Scopigno, E. Pontecorvo, R. Di Leonardo +5
The dynamic structure factor of glassy and liquid glycerol has been measured by inelastic X-ray scattering in the exchanged momentum () region =223 nm and in the te…
cond-mat.dis-nn1999
Non-dynamic origin of the acoustic attenuation at high frequency in glasses
G. Ruocco, F. Sette, R. Di Leonardo +7
The sound attenuation in the THz region is studied down to T=16 K in glassy glycerol by inelastic x-ray scattering. At striking variance with the decrease found below 100 K in the…