| Autor: |
T Nagata, K Kawajiri, S Kosugi, N Suzuki, M Kemmotsu, T Nandi, E Sokell, F Koike, Y Azuma |
| Předmět: |
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| Zdroj: |
Journal of Physics B: Atomic, Molecular & Optical Physics; 11/14/2014, Vol. 47 Issue 21, p1-1, 1p |
| Abstrakt: |
A series of time-of-flight (TOF) spectra of isolated Mn atoms were measured in the vicinity of 2p → 3d excitation states (635 to 656 eV) at a high-energy resolution. Synchrotron radiation was used as a light source. From this spectral data, charge-separated photoion-yield spectra and charge-state distribution as functions of the photon energy were obtained. The photoions resulting from the 2p → 3d excitation states are distributed from Mn+ to Mn6+, with the largest component being Mn3+ ions. Based on these spectra, the relaxation processes of the 2p → 3d excitation states are semi-quantitatively considered. For this purpose, highly excited states above the next ionization limit were calculated using the GRASP92 atomic code. It is found that single and double Auger shake-off processes play a central role in the formation of Mn5+ and Mn6+ ions. From the behavior of the charge-state distribution, the lowest 2p ionization limit has been determined to be 647.0 ± 0.3 eV. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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