Neutron-spectroscopy measurement of a fracton density of states
- 1 April 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 39 (10), 7384-7387
- https://doi.org/10.1103/physrevb.39.7384
Abstract
Inelastic neutron scattering, combined with Brillouin and elastic small-angle neutron scattering, were used to test universality in the spectral dimension d̃. The fracton density of states, obtained here on a new fractal silica aerogel and over a large frequency interval, now gives d̃≃1.8. This suggests that d̃ is a sensitive function of the fractal structure.Keywords
This publication has 14 references indexed in Scilit:
- Neutron Scattering Study of Low-Frequency Vibrations in Silica AerogelsEurophysics Letters, 1989
- Generation of fractal structures by negative pressure rupturing of SiO 2 glassJournal of Non-Crystalline Solids, 1988
- Fractal structure of base catalyzed and densified silica aerogelsJournal of Non-Crystalline Solids, 1988
- Observation of Fractons in Silica AerogelsEurophysics Letters, 1988
- Structure and self-similarity of silica aerogelsPhysical Review B, 1988
- Density of states in fractal silica smoke-particle aggregatesPhysical Review Letters, 1987
- Scattering of fractons, the Ioffe-Regel criterion, and the (4/3) conjecturePhysical Review Letters, 1987
- Brillouin-scattering measurements of phonon-fracton crossover in silica aerogelsPhysical Review Letters, 1987
- Dynamical behavior of fractal structuresPhysical Review B, 1985
- Density of states on fractals : « fractons »Journal de Physique Lettres, 1982