Behavior of Positrons in the HfNbTaTiZr Complex Concentrated Alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10421643" target="_blank" >RIV/00216208:11320/20:10421643 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=yQ5hZ4Ls5k" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=yQ5hZ4Ls5k</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12693/APhysPolA.137.260" target="_blank" >10.12693/APhysPolA.137.260</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Behavior of Positrons in the HfNbTaTiZr Complex Concentrated Alloy

Popis výsledku v původním jazyce

The properties of positrons delocalized in the HfNbTaTiZr complex concentrated alloy are investigated theoretically and related to available experimental data. Positron lifetimes calculated for random atomic arrangements appear to be short compared to the experiment carried out on a vacancy-free sample. Contrarily, a configuration exhibiting a local atomic order provides a lifetime that is very close to the experimental value. These observations indicate that the local atomic order is occurring in the studied alloy, in agreement with other measurements. The analysis of calculated results shows that the positron lifetime and affinity are affected to some extent by the alloy substitutional disorder, lattice relaxations, and charge transfer among atomic species, which should be taken into account in precise calculations.

Název v anglickém jazyce

Behavior of Positrons in the HfNbTaTiZr Complex Concentrated Alloy

Popis výsledku anglicky

The properties of positrons delocalized in the HfNbTaTiZr complex concentrated alloy are investigated theoretically and related to available experimental data. Positron lifetimes calculated for random atomic arrangements appear to be short compared to the experiment carried out on a vacancy-free sample. Contrarily, a configuration exhibiting a local atomic order provides a lifetime that is very close to the experimental value. These observations indicate that the local atomic order is occurring in the studied alloy, in agreement with other measurements. The analysis of calculated results shows that the positron lifetime and affinity are affected to some extent by the alloy substitutional disorder, lattice relaxations, and charge transfer among atomic species, which should be taken into account in precise calculations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/GA17-17016S" target="_blank" >GA17-17016S: Vliv defektů na vlastnosti biokompatibilních slitin s vysokou entropií</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

Acta Physica Polonica A

ISSN

0587-4246

e-ISSN

—

Svazek periodika

137

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

5

Strana od-do

260-264

Kód UT WoS článku

000529332100043

EID výsledku v databázi Scopus

2-s2.0-85083818369