Forthcoming papers |
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Authors: | M Karras R Juslén G Graeffe |
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Institution: | (1) University of Oulu, SF-90 100 Oulu, Finland;(2) Tampere University of Technology, SF-33200 Tampere, Finland |
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Abstract: | Kβ X-ray spectra of Si and SiO2 have been measured accurately with a double crystal spectrometer. The measuredKβ spectrum of silicon element was compared with calculations of the electronic density of states.
Observed intensity distribution shows that thep-electrons predominate at the top of the valence band, and somep-like states extend to the middle of the valence band. According to MO calculations the most intensiveKβ line of SiO2 is 4t
2 (100), the 3t
2 (16) line is 17.9 eV lower, and 5t
2 (5) line 6.3 eV higher. In our measurements the energy differences are 13.0 and 4 eV, respectively, and intensities 30% and
3% from the main line. |
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Keywords: | Kβ X-ray spectroscopy silicon and quartz valence electron states |
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