Abstract
A 4.5 GPa shock pulse producing a cycle of compression heating and expansion cooling is used to study fast mechanical dynamics of solid organic polymers and proteins. Coherent Raman spectroscopy of a dye in the sample shows that compression occurs by an instantaneous part followed by a second, , structural relaxation process. After expansion, a mechanically distorted structure is produced which does not relax on the time scale. The results are interpreted with an energy landscape model.
- Received 8 June 1999
DOI:https://doi.org/10.1103/PhysRevLett.83.5034
©1999 American Physical Society