Abstract
Acoustic phonons in an individual, oriented fiber of chrysotile asbestos (chemical formula Mg3Si2O5(OH)4) were observed at room temperature in the inelastic x-ray measurement with a very high (meV) resolution. The x-ray scattering vector was aligned along [1 0 0] direction of the reciprocal lattice, nearly parallel to the long axis of the fiber. The latter coincides with [1 0 0] direction of the direct lattice and the axes of the nano-channels. The data were analyzed using a damped harmonic oscillator model. Analysis of the phonon dispersion in the first Brillouin zone yielded the longitudinal sound velocity of (9200 ± 600) m/s.
| Original language | English |
|---|---|
| Pages (from-to) | 589-592 |
| Number of pages | 4 |
| Journal | Solid State Communications |
| Volume | 149 |
| Issue number | 15-16 |
| DOIs | |
| State | Published - Apr 2009 |
Funding
Use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
Keywords
- A. Nanostructures
- C. X-ray scattering
- D. Phonons