Electron-stimulated desorption from molecular ices in the 0.15-2 keV regime
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F20%3A00344714" target="_blank" >RIV/68407700:21220/20:00344714 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0021832" target="_blank" >https://doi.org/10.1063/5.0021832</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0021832" target="_blank" >10.1063/5.0021832</a>
Alternative languages
Result language
angličtina
Original language name
Electron-stimulated desorption from molecular ices in the 0.15-2 keV regime
Original language description
Electron-stimulated desorption (ESD) of cryosorbed molecules on surfaces is a process of relevance to fields as varied as vacuum dynamics in accelerators and astrochemistry. While desorption from such molecular systems induced by keV electrons and fast ions has been extensively studied, the sub-keV electron regime is comparatively little known. We measured and quantified electron-stimulated desorption from molecular ice systems (layers of N 2, CO, CO 2, Ar, and H 2 O/D 2 O condensed at cryogenic temperatures) in the 150-2000 eV electron energy range. In this regime, stopping power is no longer sufficient to explain the electron energy dependence of ESD yields. We introduce the notion of desorption-relevant depth, which characterizes the transition between two energy deposition regimes near the surface. We then apply this notion to the different systems, showing how ESD in the sub-keV regime can, for example, reveal the differences in species diffusion in crystalline and porous amorphous CO 2 ices.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Applied Physics
ISSN
0021-8979
e-ISSN
1089-7550
Volume of the periodical
128
Issue of the periodical within the volume
17
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
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UT code for WoS article
000589710900002
EID of the result in the Scopus database
2-s2.0-85095863667