Abstract
Electron energy-loss near-edge fine structure (ELNES) of group-III nitrides is calculated using a pseudopotential plan wave method within the framework of density functional theory. Core-hole effect and supercell size influence are investigated. Based on our present and earlier work, a comprehensive understanding of theoretical ELNES application in materials research is demonstrated: interpreting experimental spectra, predicating theoretical reference spectra when reliable experimental spectra are not available, identifying ELNES-structure correlation and estimating the reliability of experimental spectra.
Original language | English |
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Pages (from-to) | 293-298 |
Number of pages | 6 |
Journal | Journal of electron microscopy |
Volume | 54 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2005 |
Keywords
- EELS
- ab initio calculation
- core-hole effect
- nitride
- NEAR-EDGE STRUCTURE
- X-RAY-ABSORPTION
- AB-INITIO CALCULATION
- GROUP-III NITRIDES
- MOLECULAR-DYNAMICS
- SPECTRA
- CARBON
- IDENTIFICATION
- STATES