Abstract
Molecular simulations predict that a first-order amorphous-amorphous transformation occurs in under pressure, analogous to the first-order amorphous-amorphous transformation known to occur in . At low temperatures the first-order transformation is kinetically hindered, and an amorphous-amorphous transformation occurs instead by gradual spinodal decomposition at higher pressures. We suggest that previous experiments have observed the spinodal decomposition pathway in and that the predicted first-order transformation will be observed in experiments carried out at higher temperatures.
- Received 3 December 1999
DOI:https://doi.org/10.1103/PhysRevLett.84.4629
©2000 American Physical Society