Symmetry-selected electron-energy-loss scattering in diamond
Author:
- 22 March 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 70 (12) , 1822-1825
Abstract
Inelastic electron scattering using a two-beam channeling condition is used for the first time to create excitations having selectable even or odd symmetry relative to an atom column. The method is first established using plasmon and interband scattering in diamond. Next, for the carbon 1s absorption edge, scattering to modes having odd symmetry gives a strong exciton peak. Scattering to modes having even symmetry results in a depressed edge having no exciton peak in evidence.Keywords
This publication has 14 references indexed in Scilit:
- Synchrotron x-ray photoemission and reflectance study of the dipole forbidden diamond core excitonPhysical Review Letters, 1992
- New theoretical model for the diamond 1score excitonPhysical Review Letters, 1991
- Nondiagonal response of Si by inelastic-x-ray-scattering experiments at Bragg position: Evidence for bulk plasmon bandsPhysical Review Letters, 1991
- Dynamic screening of the core exciton by swift electrons in electron-energy-loss scatteringPhysical Review Letters, 1991
- High-energy resolution electron spectrometer for 1-nm spatial analysisReview of Scientific Instruments, 1986
- Observation of a C-Core Exciton in DiamondPhysical Review Letters, 1985
- Site-Specific Valence Determination by Electron Energy-Loss SpectroscopyPhysical Review Letters, 1982
- Characteristic X-ray Production in Thin CrystalsZeitschrift für Naturforschung A, 1973
- Inelastic scattering of electrons by crystals. I. The theory of small-angle in elastic scatteringProceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1963
- Intensity of Optical Absorption by ExcitonsPhysical Review B, 1957