Electronic structure of platinum at ultrahigh pressure |
| |
| Authors: | Rajeev Ahuja Per Söderlind John M Wills Börje Johansson Olle Eriksson |
| |
| Institution: | 1. Department of Physics , Uppsala University , Uppsala, Box 530, Sweden;2. Theoretical Division , Los Alamos National Laboratory Los Alamos , NM, 87545, U.S.A. |
| |
| Abstract: | Abstract Platinum is studied, theoretically, under very high compression. The calculated equation of state is found to agree well with the recent experimental data. At V/V0 = 0.4, where V0 is the experimental equilibrium volume, we find a transition from the face centered cubic structure (fcc), found at ambient pressure, to the body centered cubic structure (bcc). The calculated transition pressure is 26 Mbar. The stabilization of the bcc structure is explained by the eigen value sum. |
| |
| Keywords: | High pressure high temperature neutron diffraction cell assembly |
|
|
