@inproceedings{dda8cfb554724cd78904bb682d8e4144,
title = "Pressure dependence of anharmonic effective pair potentials in rock salt type AgI",
abstract = "Pressure dependence of anharmonic effective pair potentials V(u)=au 2/2+bu3/3! for the IAg bond in rock salt type AgI has been investigated by EXAFS Debye-Waller factors. EXAFS measurements near the I K-edge were performed under pressure up to 6.0 GPa using a multi-anvil high-pressure device and synchrotron radiation from SPring-8, Hyogo. The potential parameter a for rock-salt type is 1.66(5) eV/A2 at 1.0 GPa and increases to 1.88(6) eV/A2 at 6.0 GPa. The phonon energies in rock salt type AgI under pressure have been estimated using the potential parameter a by calculating the dynamical matrix. The anharmonic effective pair potential for each phase is influenced by pressure and becomes steeper with increasing pressure while the extent of anharmonicity decreases with pressure.",
keywords = "High pressure EXAFS, Pair potentials and forces, Phase transitions, Phonon energies in Agl",
author = "Akira Yoshiasa and Hiroshi Fukui and Hiroshi Arima and Maki Okube and Yoshinori Katayama and Murai, {Kei ichiro} and Masahiko Sugahara and Osamu Ohtaka",
year = "2007",
doi = "10.1063/1.2644596",
language = "English",
isbn = "0735403848",
series = "AIP Conference Proceedings",
pages = "569--571",
booktitle = "X-RAY ABSORPTION FINE STRUCTURE - XAFS13",
note = "X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference ; Conference date: 09-07-2006 Through 14-07-2006",
}