Abstract
Precise structure analyses of advanced materials under pressure were performed using each advantage of X-ray absorption fine structure (XAFS) and diffraction methods. Measurements were performed in-situ under pressure and temperature using a large-volume multi-anvil pressure apparatus and synchrotron radiation. XAFS spectra are useful for phase study under high temperature and high pressure. The XAFS Debye Waller factor provides anharmonic effective pair potential with a pressure-dependent and temperature-independent shape. The phonon energies and anharmonicity are affected largely by the change in local structure and bonding character.
Original language | English |
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Pages (from-to) | 4159-4162 |
Number of pages | 4 |
Journal | International Journal of Modern Physics B |
Volume | 25 |
Issue number | 31 |
DOIs | |
Publication status | Published - 2011 Dec 20 |
Keywords
- Debye-Waller factor
- combined XAFS and XRD
- high pressure and high temperature
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Condensed Matter Physics