Full-Multiple-Scattering Approach to L3 X-Ray Absorption Near Edge Structures of Amorphous Germanium
- 1 January 1998
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 37 (1R) , 230-233
- https://doi.org/10.1143/jjap.37.230
Abstract
The observed L3 X-ray absorption near edge structures (XANES) spectra for crystalline and amorphous germanium are analyzed using full-multiple-scattering calculations. The prominent first peak found in the crystalline Ge spectra are absent in the amorphous Ge spectra. The difference in the spectra is accounted for by the bond-angle fluctuation in amorphous Ge where the Ge–Ge bond distance is fixed, but a bond-angle fluctuation of 10° should be taken into account. This angular fluctuation is in good agreement with that oserved in previous studies. Other effects, such as the electronic structure and core-hole potential are also investigated, and we find that the latter effect plays an important role in XANES analyses.Keywords
This publication has 8 references indexed in Scilit:
- L3 absorption spectrum of germanium single crystalJournal of Electron Spectroscopy and Related Phenomena, 1996
- Ab initio molecular dynamics study of amorphous GeSolid State Communications, 1996
- Triangular arrangements in germanium phases probed by XASPhysica B: Condensed Matter, 1995
- Basic Features of the Short-Range-Order Multiple Scattering XANES TheoryJournal of the Physics Society Japan, 1993
- Incipient amorphous-to-crystalline transition in GePhysical Review B, 1983
- X-Ray Absorption Near Edge Structure (XANES) Studied by the Short-Range Order Multiple Scattering TheoryJournal of the Physics Society Japan, 1983
- A neutron diffraction study of the structure of evaporated amorphous germaniumJournal of Non-Crystalline Solids, 1982
- EXAFS investigation of amorphous-to-crystal transition in GeSolid State Communications, 1981