As2S3 Glass Quenched in a Weak Magnetic Field

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F23%3A39920532" target="_blank" >RIV/00216275:25310/23:39920532 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1134/S1027451023050221" target="_blank" >https://link.springer.com/article/10.1134/S1027451023050221</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S1027451023050221" target="_blank" >10.1134/S1027451023050221</a>

Jazyk výsledku

angličtina

Název v původním jazyce

As2S3 Glass Quenched in a Weak Magnetic Field

Popis výsledku v původním jazyce

Abstract: S- and Se-based chalcogenide glasses are inherently metastable and exhibit a number of photoinduced effects unique to this class of materials, the major example being reversible photostructural changes. Such changes appear as reversible darkening under the exposure to band gap light and are usually interpreted in terms of the formation of valence alternation pairs and “wrong” bonds. Some time ago, it was shown that quenching an As2S3 melt in a weak magnetic field also resulted in a decrease in the glass optical band gap. In this work, we report the results of comparative extended X-ray absorption fine structure (EXAFS) and high-energy X-ray diffraction studies of the local structure of the As2S3 glass formed through quenching the melt in a weak magnetic field and without it. Based on these experiments and density functional theory simulations, we propose a model for the structural nanoscale modification of diamagnetic As2S3 under the action of a magnetic field. © 2023, Pleiades Publishing, Ltd.

Název v anglickém jazyce

As2S3 Glass Quenched in a Weak Magnetic Field

Popis výsledku anglicky

Abstract: S- and Se-based chalcogenide glasses are inherently metastable and exhibit a number of photoinduced effects unique to this class of materials, the major example being reversible photostructural changes. Such changes appear as reversible darkening under the exposure to band gap light and are usually interpreted in terms of the formation of valence alternation pairs and “wrong” bonds. Some time ago, it was shown that quenching an As2S3 melt in a weak magnetic field also resulted in a decrease in the glass optical band gap. In this work, we report the results of comparative extended X-ray absorption fine structure (EXAFS) and high-energy X-ray diffraction studies of the local structure of the As2S3 glass formed through quenching the melt in a weak magnetic field and without it. Based on these experiments and density functional theory simulations, we propose a model for the structural nanoscale modification of diamagnetic As2S3 under the action of a magnetic field. © 2023, Pleiades Publishing, Ltd.

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/GC20-23392J" target="_blank" >GC20-23392J: Ovlivnění sklotvornosti a modifikace fotoindukovaných vlastností hybridních amorfních chalkogenidů skrz řízenou koncentraci volných elektronových párů</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Surface Investigation

ISSN

1027-4510

e-ISSN

1819-7094

Svazek periodika

17

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

"1162 "- 1167

Kód UT WoS článku

001166867500018

EID výsledku v databázi Scopus

2-s2.0-85174440658