Measurement of the phonon-fracton crossover in the density of states of silica aerogels
- E. Courtens
- C. Lartigue
- et al.
- 1990
- Zeitschrift für Physik B Condensed Matter
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25 results for René Vacher
Localization of acoustic vibrations in aerogels
- R. Vacher
- E. Courtens
- 1989
- IUS 1989
Neutron-spectroscopy measurement of a fracton density of states
- René Vacher
- Eric Courtens
- et al.
- 1989
- Physical Review B
Fractons observed
- Eric Courtens
- René Vacher
- et al.
- 1989
- Physica D: Nonlinear Phenomena
Fractal structure of base catalyzed and densified silica aerogels
- René Vacher
- Thierry Woignier
- et al.
- 1988
- Journal of Non-Crystalline Solids
Raman-scattering measurements of acoustic superlocalization in silica aerogels
- Yuji Tsujimi
- Eric Courtens
- et al.
- 1988
- Physical Review Letters
Structure and self-similarity of silica aerogels
- René Vacher
- Thierry Woignier
- et al.
- 1988
- Physical Review B
Elastic properties of silica aerogels
- T. Woignier
- J. Pelous
- et al.
- 1987
- Journal of Non-Crystalline Solids
Acoustic dispersion in silica aerogels observed by brillouin scattering : Evidence for phonon-fracton crossover
- E. Courtens
- J. Pelous
- et al.
- 1987
- Journal of Non-Crystalline Solids
Brillouin spectroscopy of polarization fluctuations in Rb1-x(NH4)xH2PO4 mixed crystals: Concentration dependence
- Eric Courtens
- René Vacher
- et al.
- 1987
- Physical Review B