File:Bombardment induced electron-capture processes at sodium halide surfaces (IA jresv101n6p755).pdf
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[edit]Bombardment induced electron-capture processes at sodium halide surfaces
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Author |
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Title |
Bombardment induced electron-capture processes at sodium halide surfaces |
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Volume | 101 | |
Publisher |
National Institute of Standards and Technology |
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Description |
Journal of Research of the National Institute of Standards and Technology Subjects: ion bombardment; autoionization; collisional excitation; defect production; electron capture collisions; electron spectra |
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Language | English | |
Publication date |
November 1996 publication_date QS:P577,+1996-11-00T00:00:00Z/10 |
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Current location |
IA Collections: NISTJournalofResearch; NISTresearchlibrary; fedlink; americana |
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Accession number |
jresv101n6p755 |
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Source | ||
Permission (Reusing this file) |
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Short title | Bombardment induced electron-capture processes at sodium halide surfaces |
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Image title | Discrete features observed in the energy distribution of electrons emitted from ion-bombarded sodium halide surfaces can be attributed to a new type of collisional deexcitation mechanism. Such a mechanism involves sodium atoms in bombardment-excited autoionizing states that are the result of cascade collisions within the crystal lattice. This deexcitation process, in contrast to that for a metal, is not simply a consequence of the inner-shell lifetime of the initial collisionally excited sodium Na-+* ion. Rather, the deexcitation consists of a sequence of lattice collisions during which the excited Na-+* ion captures an electron to form the inner-shell-excited Na-0* states responsible for the observed transitions. The formation of such autoionizing Na0+ states is described within the framework of a new model in which excitation processes and localized collisional electron-transfer mechanisms are taken into account. These localized electron-transfer processes make possible new channels for electronic deexcitation, chemical dissociation, and defect production; they are critical for understanding inelastic ion-surface collisions in solids. |
Author | Fine, J. |
Keywords |
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Software used | LuraDocument PDF Compressor Server 5.6.64.44 |
Conversion program | LuraDocument PDF v2.44 |
Encrypted | no |
Page size | 576 x 756 pts |
Version of PDF format | 1.4 |