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- W1986178652 abstract "The 3s-3p excitation of spin-polarized Na atoms by ${mathrm{Ne}}^{+}$ ions has been studied for impact energies ${E}_{mathrm{lab}=200}$ eV to 6 keV, i.e., in the adiabatic regime. The total excitation cross section and the three Stokes polarization parameters of the fluorescence light have been measured. The linear polarization of the light shows a preferential excitation of the ensuremath{Vert}${m}_{l}$ensuremath{Vert}=1 magnetic substates. The circular polarization probes the spin orientation of the excited 3p state. At the highest impact energies investigated the experimental data are compatible with conservation of spin orientation during the collision. With decreasing impact energy, the spin polarization of the final 3p state becomes smaller than the spin polarization of the initial 3s state. This apparent spin depolarization is attributed to the exchange interaction between the Na valence electron and the unfilled ${mathrm{Ne}}^{+}$ 2${p}^{5}$ core in the quasimolecule formed during the collision." @default.
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- W1986178652 date "1986-11-01" @default.
- W1986178652 modified "2023-09-26" @default.
- W1986178652 title "Spin exchange in the excitation of spin-polarized Na atoms byNe+-ion impact" @default.
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- W1986178652 doi "https://doi.org/10.1103/physreva.34.3684" @default.
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