We studied the energy distributions of electrons emitted in the interaction of slow Na+ ions with polycrystalline Alsurfaces. To study sub-threshold plasmon excitation we performed measurements as a function of emission angle whichshowed the excitation of bulk plasmons, confirming the kinetic nature of the excitation process.Electron spectra show narrow transition lines due to Auger decay in vacuum of sodium projectiles excited in the2p-shell by electron promotion in collisions with Al target atoms. Several previously unidentified transition lines couldbe attributed to the autoionization of doubly excited projectiles. 2004 Elsevier B.V. All rights reserved.

Plasmon Excitation and Electron Promotion in the Interaction of Slow Na+ Ions with Al Surfaces

BONANNO, Assunta Carmela;XU, Fang;RICCARDI, Pierfrancesco
;
2005-01-01

Abstract

We studied the energy distributions of electrons emitted in the interaction of slow Na+ ions with polycrystalline Alsurfaces. To study sub-threshold plasmon excitation we performed measurements as a function of emission angle whichshowed the excitation of bulk plasmons, confirming the kinetic nature of the excitation process.Electron spectra show narrow transition lines due to Auger decay in vacuum of sodium projectiles excited in the2p-shell by electron promotion in collisions with Al target atoms. Several previously unidentified transition lines couldbe attributed to the autoionization of doubly excited projectiles. 2004 Elsevier B.V. All rights reserved.
2005
Ion-surface impact, Ion scattering from surfaces, Secondary electron emission, Plasmons, Auger electron emission
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/123701
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 15
social impact