Energy deposition by H and He ions at keV energies in self-supporting, single crystalline SiC foils

Ntemou, E.; Holeňák, Radek; Primetzhofer, Daniel

doi:10.1016/j.radphyschem.2022.110033

Cited by 10 publications

(1 citation statement)

References 36 publications

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“…Charge exchange and electronic excitations in the interaction of slow ions with solids are currently the subject of an intense investigation [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. These processes are important in charge fraction formation, in energy deposition in solids and in several applications such as microscopy and characterization of materials.…”

Section: Introductionmentioning

confidence: 99%

Plasmon Excitation in the Interaction of Slow Singly Charged Argon Ions with Magnesium

Riccardi

2024

Solids

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We report angle-resolved energy spectra of electron emitted in the interaction of slow singly charged heavy ions with Mg surface. The work is focused mainly on the excitation of plasmons of Mg under Argon impact. Potential excitation of plasmons occurs when incoming ions are neutralized at the expense of the potential energy carried by incoming ions. The process competes with the known mechanisms of neutralization via Auger transitions. Differently from Al samples, our results show that the neutralization of Ar+ ions at Mg is dominated by the excitation of surface plasmons by the potential energy released in the electron capture process that neutralizes incoming ions. Bulk plasmon excitation is observed at higher impact energy and is ascribed to fast electrons excited by the transfer of the kinetic energy of incoming particles. The data show that bulk plasmon excitation occur inside the bulk, while the theoretically predicted excitation by potential energy transfer of incoming projectiles is not observed.

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