Particle transport phenomena in low temperature solids
DOI (Low Temperature Physics):
https://doi.org/10.1063/1.1542437Ключові слова:
PACS: 72.20.JvАнотація
We review different approaches to measure the transport of F atoms and ions in rare gas matrices and compare the experimental results to simulations. Static measurements on sandwich structures and co-doped matrices yield rather long travel ranges beyond 2 nm, in accord with early classical simulations which predict a channeling of the F atoms in rare gas matrices. Nonadiabatic simulations show a rapid energy loss, fast nonadiabatic dynamics and only short travel ranges of typically 1 unit cell. The rapid energy loss, fast nonadiabatic transitions and the timescale for direct dissociation (~ 250 fs) are verified by fs-pump-probe experiments. It remains a challenge to account for the long-range migration when nonadiabatic processes are allowed in simulations, and to measure the long distance flights directly by ultrafast spectroscopy.
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Опубліковано
2003-02-02
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M. Bargheer and N. Schwentner, Particle transport phenomena in low temperature solids, Low Temp. Phys. 29, (2003) [Fiz. Nizk. Temp. 29, 225-236, (2003)] DOI: https://doi.org/10.1063/1.1542437.
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