Thermal behavior of Se-rich Ge2Sb2Se(5-y)Tey chalcogenide system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F15%3A39899430" target="_blank" >RIV/00216275:25310/15:39899430 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jallcom.2014.12.007" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2014.12.007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2014.12.007" target="_blank" >10.1016/j.jallcom.2014.12.007</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal behavior of Se-rich Ge2Sb2Se(5-y)Tey chalcogenide system

Popis výsledku v původním jazyce

The thermal behavior of the Ge2Sb2Se(5-y)Tey chalcogenide system (a compositional analog of the famous GST-225 PCM material) was thoroughly studied. Glass transition, cold crystallization, and melting phenomena were investigated in dependence on composition and various experimental conditions (heating rate, particle size). The kinetics of the structural relaxation and crystallization processes are described in terms of the Tool-Narayanaswamy-Moynihan and Autocatalytic models. The complexity of these processes is thoroughly discussed with regard to the compositionally given changes of molecular structures. Heat capacity measurements were performed for the compositions with y = 0, 0.5, and 1 in the 50-550 degrees C temperature range. All glassy and crystalline C-p dependences were found to be identical within the experimental error. The compositional dependence of the P-type undercooled liquid C-p evolution was found to contribute significantly to the changes in glass-forming ability (GF

Název v anglickém jazyce

Thermal behavior of Se-rich Ge2Sb2Se(5-y)Tey chalcogenide system

Popis výsledku anglicky

The thermal behavior of the Ge2Sb2Se(5-y)Tey chalcogenide system (a compositional analog of the famous GST-225 PCM material) was thoroughly studied. Glass transition, cold crystallization, and melting phenomena were investigated in dependence on composition and various experimental conditions (heating rate, particle size). The kinetics of the structural relaxation and crystallization processes are described in terms of the Tool-Narayanaswamy-Moynihan and Autocatalytic models. The complexity of these processes is thoroughly discussed with regard to the compositionally given changes of molecular structures. Heat capacity measurements were performed for the compositions with y = 0, 0.5, and 1 in the 50-550 degrees C temperature range. All glassy and crystalline C-p dependences were found to be identical within the experimental error. The compositional dependence of the P-type undercooled liquid C-p evolution was found to contribute significantly to the changes in glass-forming ability (GF

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP106%2F11%2F1152" target="_blank" >GAP106/11/1152: Reverzibilní krystalizace a strukturni relaxace amorfních materiálů pro záznam informace</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Svazek periodika

627

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

287-298

Kód UT WoS článku

000348504800041

EID výsledku v databázi Scopus

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