Abstract
The time-dependent expectation value of the triplet metastable He atom is obtained by starting from the singlet state and solving the time-dependent Schrödinger equation directly, to the eighth-order of V, where V is the transfer integral between the conduction electron state and the 2s state of the He atom. The results show that rapid singlet-triplet conversion on the low work-function metal surface occurs through the valence fluctuation state. The quasi-static approximation is demonstrated to be valid to the eighth-order of V. The previously conjectured closed form of the transition rate for the conversion is confirmed.
| Original language | English |
|---|---|
| Pages (from-to) | 127-132 |
| Number of pages | 6 |
| Journal | Surface Science |
| Volume | 363 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - Aug 1 1996 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
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Kawai, H., Yoshimori, A., & Nakayama, M. (1996). Valence fluctuation state of a metastable He atom beam on a metal surface, and singlet-triplet conversion. Surface Science, 363(1-3), 127-132. https://doi.org/10.1016/0039-6028(96)00120-3