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Quantum dynamics of charge state in silicon field evaporation
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| Zeitschriftentitel: | AIP Advances |
|---|---|
| Personen und Körperschaften: | , , |
| In: | AIP Advances, 6, 2016, 8 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
AIP Publishing
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| Schlagwörter: |
| author_facet |
Silaeva, Elena P. Uchida, Kazuki Watanabe, Kazuyuki Silaeva, Elena P. Uchida, Kazuki Watanabe, Kazuyuki |
|---|---|
| author |
Silaeva, Elena P. Uchida, Kazuki Watanabe, Kazuyuki |
| spellingShingle |
Silaeva, Elena P. Uchida, Kazuki Watanabe, Kazuyuki AIP Advances Quantum dynamics of charge state in silicon field evaporation General Physics and Astronomy |
| author_sort |
silaeva, elena p. |
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Silaeva, Elena P. Uchida, Kazuki Watanabe, Kazuyuki 2158-3226 AIP Publishing General Physics and Astronomy http://dx.doi.org/10.1063/1.4960553 <jats:p>The charge state of an ion field-evaporating from a silicon-atom cluster is analyzed using time-dependent density functional theory coupled to molecular dynamics. The final charge state of the ion is shown to increase gradually with increasing external electrostatic field in agreement with the average charge state of silicon ions detected experimentally. When field evaporation is triggered by laser-induced electronic excitations the charge state also increases with increasing intensity of the laser pulse. At the evaporation threshold, the charge state of the evaporating ion does not depend on the electrostatic field due to the strong contribution of laser excitations to the ionization process both at low and high laser energies. A neutral silicon atom escaping the cluster due to its high initial kinetic energy is shown to be eventually ionized by external electrostatic field.</jats:p> Quantum dynamics of charge state in silicon field evaporation AIP Advances |
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AIP Publishing, 2016 |
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AIP Publishing, 2016 |
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| title |
Quantum dynamics of charge state in silicon field evaporation |
| title_unstemmed |
Quantum dynamics of charge state in silicon field evaporation |
| title_full |
Quantum dynamics of charge state in silicon field evaporation |
| title_fullStr |
Quantum dynamics of charge state in silicon field evaporation |
| title_full_unstemmed |
Quantum dynamics of charge state in silicon field evaporation |
| title_short |
Quantum dynamics of charge state in silicon field evaporation |
| title_sort |
quantum dynamics of charge state in silicon field evaporation |
| topic |
General Physics and Astronomy |
| url |
http://dx.doi.org/10.1063/1.4960553 |
| publishDate |
2016 |
| physical |
|
| description |
<jats:p>The charge state of an ion field-evaporating from a silicon-atom cluster is analyzed using time-dependent density functional theory coupled to molecular dynamics. The final charge state of the ion is shown to increase gradually with increasing external electrostatic field in agreement with the average charge state of silicon ions detected experimentally. When field evaporation is triggered by laser-induced electronic excitations the charge state also increases with increasing intensity of the laser pulse. At the evaporation threshold, the charge state of the evaporating ion does not depend on the electrostatic field due to the strong contribution of laser excitations to the ionization process both at low and high laser energies. A neutral silicon atom escaping the cluster due to its high initial kinetic energy is shown to be eventually ionized by external electrostatic field.</jats:p> |
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| author | Silaeva, Elena P., Uchida, Kazuki, Watanabe, Kazuyuki |
| author_facet | Silaeva, Elena P., Uchida, Kazuki, Watanabe, Kazuyuki, Silaeva, Elena P., Uchida, Kazuki, Watanabe, Kazuyuki |
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| description | <jats:p>The charge state of an ion field-evaporating from a silicon-atom cluster is analyzed using time-dependent density functional theory coupled to molecular dynamics. The final charge state of the ion is shown to increase gradually with increasing external electrostatic field in agreement with the average charge state of silicon ions detected experimentally. When field evaporation is triggered by laser-induced electronic excitations the charge state also increases with increasing intensity of the laser pulse. At the evaporation threshold, the charge state of the evaporating ion does not depend on the electrostatic field due to the strong contribution of laser excitations to the ionization process both at low and high laser energies. A neutral silicon atom escaping the cluster due to its high initial kinetic energy is shown to be eventually ionized by external electrostatic field.</jats:p> |
| doi_str_mv | 10.1063/1.4960553 |
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| imprint | AIP Publishing, 2016 |
| imprint_str_mv | AIP Publishing, 2016 |
| institution | DE-Zwi2, DE-D161, DE-Zi4, DE-Gla1, DE-15, DE-Pl11, DE-Rs1, DE-14, DE-105, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1 |
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| language | English |
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| series | AIP Advances |
| source_id | 49 |
| spelling | Silaeva, Elena P. Uchida, Kazuki Watanabe, Kazuyuki 2158-3226 AIP Publishing General Physics and Astronomy http://dx.doi.org/10.1063/1.4960553 <jats:p>The charge state of an ion field-evaporating from a silicon-atom cluster is analyzed using time-dependent density functional theory coupled to molecular dynamics. The final charge state of the ion is shown to increase gradually with increasing external electrostatic field in agreement with the average charge state of silicon ions detected experimentally. When field evaporation is triggered by laser-induced electronic excitations the charge state also increases with increasing intensity of the laser pulse. At the evaporation threshold, the charge state of the evaporating ion does not depend on the electrostatic field due to the strong contribution of laser excitations to the ionization process both at low and high laser energies. A neutral silicon atom escaping the cluster due to its high initial kinetic energy is shown to be eventually ionized by external electrostatic field.</jats:p> Quantum dynamics of charge state in silicon field evaporation AIP Advances |
| spellingShingle | Silaeva, Elena P., Uchida, Kazuki, Watanabe, Kazuyuki, AIP Advances, Quantum dynamics of charge state in silicon field evaporation, General Physics and Astronomy |
| title | Quantum dynamics of charge state in silicon field evaporation |
| title_full | Quantum dynamics of charge state in silicon field evaporation |
| title_fullStr | Quantum dynamics of charge state in silicon field evaporation |
| title_full_unstemmed | Quantum dynamics of charge state in silicon field evaporation |
| title_short | Quantum dynamics of charge state in silicon field evaporation |
| title_sort | quantum dynamics of charge state in silicon field evaporation |
| title_unstemmed | Quantum dynamics of charge state in silicon field evaporation |
| topic | General Physics and Astronomy |
| url | http://dx.doi.org/10.1063/1.4960553 |