Crystal Growth Kinetics and Viscous Behavior in Ge2Sb2Se5 Undercooled Melt
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F16%3A39901755" target="_blank" >RIV/00216275:25310/16:39901755 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/acs.jpcb.6b05455" target="_blank" >http://dx.doi.org/10.1021/acs.jpcb.6b05455</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpcb.6b05455" target="_blank" >10.1021/acs.jpcb.6b05455</a>
Alternative languages
Result language
angličtina
Original language name
Crystal Growth Kinetics and Viscous Behavior in Ge2Sb2Se5 Undercooled Melt
Original language description
Crystal growth, viscosity, and melting were studied in Ge2Sb2Se5 bulk samples. The crystals formed a compact layer on the surface of the sample and then continued to grow from the surface to the central part of the sample. The formed crystalline layer grew linearly with time, which suggests that the crystal growth is controlled by liquid crystal interface kinetics. Combining the growth data with the measured viscosities and melting data, crystal growth could be described on the basis of standard crystal growth models. The screw dislocation growth model seems to be operative in describing the temperature dependence of the crystal growth rate in the studied material in a wide temperature range. A detailed discussion on the relation between the kinetic coefficient of crystal growth and viscosity (u(kin) proportional to eta(-xi)) is presented. The activation energy of crystal growth was found to be higher than the activation energy of crystallization obtained from differential scanning calorimetry, which covers the whole nucleation-growth process. This difference is considered and explained under the experimental conditions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physical Chemistry B
ISSN
1520-6106
e-ISSN
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Volume of the periodical
120
Issue of the periodical within the volume
32
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
7998-8006
UT code for WoS article
000381778200024
EID of the result in the Scopus database
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