Abstract
We present ab initio calculations of the linear optical conductivity of heated Al at ambient pressure and at the conditions relevant for shock melting . It is shown that the visible and near-UV optical spectrum is very sensitive to the phase (fcc solid versus liquid) of Al for both and 125 GPa. The ambient- results confirm an earlier prediction and the results of a recent experiment while the high- results allow us to conclude that in situ measurements of optical constants should be able to diagnose the shock melting of Al.
- Received 23 July 2009
DOI:https://doi.org/10.1103/PhysRevB.80.214105
©2009 American Physical Society