About: Neutron diffraction study on the medium and short-range order of ternary chalcogenide glasses.

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About: Neutron diffraction study on the medium and short-range order of ternary chalcogenide glasses. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Glasses from Ge.sub.x./sub.As.sub.40-x./sub.Se.sub.60./sub., Ge.sub.x./sub.Sb.sub.40-x./sub.S.sub.60./sub. and Ge.sub.x./sub.Sb.sub40-x./sub.Se.sub.60./sub. families have been investigated by neutron diffraction. The well expressed 'first sharp diffraction peak' of the neutron spectra at Q= 10- 14 nm.sub.-1./sub. has been explained by a pseudo-binary model of the structure of studied chalcogenide glasses. The amplitude of this interference maximum increases with Ge-content in all investigated samples. Experimental radial distribution functions show that the basic structural units, GeS(Se).sub.4./sub. tetrahedra and As(Sb)S.sub.3./sub. or As(Sb)Se.sub.3./sub. pyramids persist in glassy state for the whole range of studied compositions. Crystal-like model distribution functions have been used to describe the short-range order observed. A shortening of heteropolar bonds in S-containing glasses as well as an increase of heteropolar bonds length in Se-containing glasses has been found. Glasses from Ge.sub.x./sub.As.sub.40-x./sub.Se.sub.60./sub., Ge.sub.x./sub.Sb.sub.40-x./sub.S.sub.60./sub. and Ge.sub.x./sub.Sb.sub40-x./sub.Se.sub.60./sub. families have been investigated by neutron diffraction. The well expressed 'first sharp diffraction peak' of the neutron spectra at Q= 10- 14 nm.sub.-1./sub. has been explained by a pseudo-binary model of the structure of studied chalcogenide glasses. The amplitude of this interference maximum increases with Ge-content in all investigated samples. Experimental radial distribution functions show that the basic structural units, GeS(Se).sub.4./sub. tetrahedra and As(Sb)S.sub.3./sub. or As(Sb)Se.sub.3./sub. pyramids persist in glassy state for the whole range of studied compositions. Crystal-like model distribution functions have been used to describe the short-range order observed. A shortening of heteropolar bonds in S-containing glasses as well as an increase of heteropolar bonds length in Se-containing glasses has been found. (en)
Title	Neutron diffraction study on the medium and short-range order of ternary chalcogenide glasses. Neutron diffraction study on the medium and short-range order of ternary chalcogenide glasses. (en)
skos:prefLabel	Neutron diffraction study on the medium and short-range order of ternary chalcogenide glasses. Neutron diffraction study on the medium and short-range order of ternary chalcogenide glasses. (en)
skos:notation	RIV/61389005:_____/99:49020110!RIV/2003/GA0/A49003/N
http://linked.open.../vavai/riv/strany	3669;3676
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GV202/97/K038), Z(AV0Z1048901)
http://linked.open...iv/cisloPeriodika	N/A
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Mikula, Pavel Lukáš, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav jaderné fyziky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	747342
http://linked.open...ai/riv/idVysledku	RIV/61389005:_____/99:49020110
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	neutron diffraction; short-range order; chalcogenide glasses (en)
http://linked.open.../riv/klicoveSlovo	short-range order chalcogenide glasses neutron diffraction
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[8BC3B3D2DD39]
http://linked.open...i/riv/nazevZdroje	Journal of Materials Science
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Centre for fundamental and applied neutron research
http://linked.open...UplatneniVysledku	1999
http://linked.open...v/svazekPeriodika	34
http://linked.open...iv/tvurceVysledku	Lukáš, Petr Mikula, Pavel Arsova, D. Gerasimova, I. Neov, S. Sonntag, R. Pamukchieva, V. Skordeva, E.
http://linked.open...n/vavai/riv/zamer	Theoretical and experimental investigation of atomic nuclei and exploitation of nuclear methods in interdisciplinary research
issn	0022-2461
number of pages	8 (xsd:int)

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