Efficiency of core-level interatomic Coulombic decay in rare-gas dimers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10421808" target="_blank" >RIV/00216208:11320/20:10421808 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fYTxC1PtSo" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fYTxC1PtSo</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.101.033402" target="_blank" >10.1103/PhysRevA.101.033402</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficiency of core-level interatomic Coulombic decay in rare-gas dimers

Popis výsledku v původním jazyce

In this work we investigated the competition between the local Auger decay and core-level interatomic Coulombic decay (ICD) processes in core ionized rare-gas dimers. We computed the respective partial decay widths for the 4d vacancy in Xe-2, XeKr, and XeAr, as well as for the 3d vacancy in Kr-2. We found that the efficiency of ICD is strongly increased with decreasing interatomic distance and decreasing energy transfer in the decay step. The ICD-to-Auger ratio in the Franck-Condon region, where the decay occurs, is at most 0.26%. However, it reaches a few percentage points in larger clusters and becomes amenable for experimental observation. The small value of the branching ratio is due to large interatomic distances in the dimers (4-4.4 angstrom). Our results also indicate, in accordance with previous measurements, that in hydrogen-bonded and microsolvated clusters, where the distances between the monomers are 2-3 angstrom, core-level ICD should become an important pathway for charge redistribution following the absorption of hard x-rays.

Název v anglickém jazyce

Efficiency of core-level interatomic Coulombic decay in rare-gas dimers

Popis výsledku anglicky

In this work we investigated the competition between the local Auger decay and core-level interatomic Coulombic decay (ICD) processes in core ionized rare-gas dimers. We computed the respective partial decay widths for the 4d vacancy in Xe-2, XeKr, and XeAr, as well as for the 3d vacancy in Kr-2. We found that the efficiency of ICD is strongly increased with decreasing interatomic distance and decreasing energy transfer in the decay step. The ICD-to-Auger ratio in the Franck-Condon region, where the decay occurs, is at most 0.26%. However, it reaches a few percentage points in larger clusters and becomes amenable for experimental observation. The small value of the branching ratio is due to large interatomic distances in the dimers (4-4.4 angstrom). Our results also indicate, in accordance with previous measurements, that in hydrogen-bonded and microsolvated clusters, where the distances between the monomers are 2-3 angstrom, core-level ICD should become an important pathway for charge redistribution following the absorption of hard x-rays.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

<a href="/cs/project/GA17-10866S" target="_blank" >GA17-10866S: Vlastnosti autoionizujících stavů v atomech, molekulách a klastrech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Physical Review A

ISSN

2469-9926

e-ISSN

—

Svazek periodika

101

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

033402

Kód UT WoS článku

000517942500003

EID výsledku v databázi Scopus

2-s2.0-85082799702