Ag polycrystal and monocrystal by high sensitivity-low energy ion scattering

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU155136" target="_blank" >RIV/00216305:26210/24:PU155136 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.aip.org/avs/sss/article/31/2/024201/3328702/Ag-polycrystal-and-monocrystal-by-high-sensitivity" target="_blank" >https://pubs.aip.org/avs/sss/article/31/2/024201/3328702/Ag-polycrystal-and-monocrystal-by-high-sensitivity</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1116/6.0003869" target="_blank" >10.1116/6.0003869</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ag polycrystal and monocrystal by high sensitivity-low energy ion scattering

Popis výsledku v původním jazyce

Low energy ion scattering is a qualitative and quantitative surface analysis technique. Its supreme surface sensitivity and straightforward quantification (using a well-defined reference) make it a convenient tool for the study of surface composition and a useful method for surface characterization in cooperation with other surface analysis methods such as XPS and SIMS. Silver (100) monocrystal was analyzed by the primary beam of helium ions. The wide energy range from 1.0 to 4.5 keV covers three distinguished regions. On the low energy side, the charge exchange processes are dominated by Auger neutralization (AN), while collision-induced (CI) processes rule a high energy range. Both mechanisms are mixed in the intermediate region between 1.2 and 2.1 keV (for perpendicular incidence and 145 degrees scattering geometry). The results can serve both as a reference and as an insight into neutralization probability changes (as dependence on primary energy). The neutralization strength is reflected by the characteristic velocity. It was evaluated for AN and CI regions to 0.75 x 105 and 0.38 x 105 ms-1, respectively. The CI reionization energy threshold is around 1700 eV for both Ag (100) and polycrystalline Ag. The reference measurement on polycrystalline copper relates the presented data to those received by other Qtac100 instruments with different sensitivities.

Název v anglickém jazyce

Ag polycrystal and monocrystal by high sensitivity-low energy ion scattering

Popis výsledku anglicky

Low energy ion scattering is a qualitative and quantitative surface analysis technique. Its supreme surface sensitivity and straightforward quantification (using a well-defined reference) make it a convenient tool for the study of surface composition and a useful method for surface characterization in cooperation with other surface analysis methods such as XPS and SIMS. Silver (100) monocrystal was analyzed by the primary beam of helium ions. The wide energy range from 1.0 to 4.5 keV covers three distinguished regions. On the low energy side, the charge exchange processes are dominated by Auger neutralization (AN), while collision-induced (CI) processes rule a high energy range. Both mechanisms are mixed in the intermediate region between 1.2 and 2.1 keV (for perpendicular incidence and 145 degrees scattering geometry). The results can serve both as a reference and as an insight into neutralization probability changes (as dependence on primary energy). The neutralization strength is reflected by the characteristic velocity. It was evaluated for AN and CI regions to 0.75 x 105 and 0.38 x 105 ms-1, respectively. The CI reionization energy threshold is around 1700 eV for both Ag (100) and polycrystalline Ag. The reference measurement on polycrystalline copper relates the presented data to those received by other Qtac100 instruments with different sensitivities.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Surface Science Spectra

ISSN

1520-8575

e-ISSN

—

Svazek periodika

31

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

„“-„“

Kód UT WoS článku

001386122400001

EID výsledku v databázi Scopus

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