Abstract
We calculate both the stopping power of a H atom and the number of electrons it excites, when it moves slowly in a spin-polarized electron gas. The potential induced by the projectile in which the medium electrons scatter off is obtained self-consistently within density functional theory, in the local spin density approximation. We show that both the stopping power and the number of excited electrons decrease slightly when increasing the polarization of the electron gas. Furthermore, the spin-polarization of the excited electrons increases with the projectile velocity and remains in all the cases lower than the polarization of the medium.
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Schedule a callMore From: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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