Nonthermal acceleration of atoms as a mechanism of fast lattice heating in ion tracks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00559832" target="_blank" >RIV/68378271:_____/22:00559832 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389021:_____/22:00579466

Výsledek na webu

<a href="https://doi.org/10.1063/5.0095724" target="_blank" >https://doi.org/10.1063/5.0095724</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0095724" target="_blank" >10.1063/5.0095724</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nonthermal acceleration of atoms as a mechanism of fast lattice heating in ion tracks

Popis výsledku v původním jazyce

Atomic heating in a solid takes place after an impact of a swift heavy ion within a time of electronic cooling there, i.e., similar to 100 fs. This implies an extremely fast electron-ion energy exchange ( „electron-phonon coupling“) necessary for the production of detected ion tracks. In contrast, laser irradiation experiments and calculations show too slow electron-phonon energy exchange to cause structural changes detected in swift heavy ion tracks in solids. We demonstrate that this contradiction can be resolved by taking into account that electron-phonon coupling is not the sole mechanism of energy exchange between electrons and ions in condensed matter. Excitation of the electronic system alters the potential energy surface of atoms, causing them to accelerate and increase their kinetic energy at ultrashort times. Published under an exclusive license by AIP Publishing.

Název v anglickém jazyce

Nonthermal acceleration of atoms as a mechanism of fast lattice heating in ion tracks

Popis výsledku anglicky

Atomic heating in a solid takes place after an impact of a swift heavy ion within a time of electronic cooling there, i.e., similar to 100 fs. This implies an extremely fast electron-ion energy exchange ( „electron-phonon coupling“) necessary for the production of detected ion tracks. In contrast, laser irradiation experiments and calculations show too slow electron-phonon energy exchange to cause structural changes detected in swift heavy ion tracks in solids. We demonstrate that this contradiction can be resolved by taking into account that electron-phonon coupling is not the sole mechanism of energy exchange between electrons and ions in condensed matter. Excitation of the electronic system alters the potential energy surface of atoms, causing them to accelerate and increase their kinetic energy at ultrashort times. Published under an exclusive license by AIP Publishing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Physics

ISSN

0021-8979

e-ISSN

1089-7550

Svazek periodika

131

Číslo periodika v rámci svazku

22

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

225903

Kód UT WoS článku

000812347900010

EID výsledku v databázi Scopus

2-s2.0-85132172455