| Original Articles |
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Photodetachment of H- near Elastic Surface in Parallel Electric and Magnetic Fields |
| WANG De-Hua |
| College of Physics and Electronic Engineering, Ludong University, Yantai 264025 |
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| Cite this article: |
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WANG De-Hua 2007 Chin. Phys. Lett. 24 1886-1889 |
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Abstract The photodetachment cross section of H- in parallel electric and magnetic fields near an elastic surface is derived and calculated by using the closed orbit theory. It is found that the elastic surface can produce some interesting effects. Besides the closed orbits previously found by Peters et al. for the H- in parallel electric and magnetic fields, some additional closed orbits are produced due to the effect of the elastic surface. The results show that the cross section oscillation is much more complicated in comparison with the cross section of H- in parallel external fields without surface. Each peak in the Fourier transformed cross section corresponds to the period of one detached electron closed orbit. This study provides a new understanding of the photodetachment of negative ions in the presence of external fields and surface.
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| Keywords:
32.60.+i
32.80.Gc
03.65.Sq
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Received: 20 April 2007
Published: 25 June 2007
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| PACS: |
32.60.+i
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(Zeeman and Stark effects)
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32.80.Gc
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(Photodetachment of atomic negative ions)
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03.65.Sq
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(Semiclassical theories and applications)
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