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dc.contributor.author
Cuello, Gabriel Julio
dc.contributor.author
Piarristeguy, A. A.
dc.contributor.author
Fernández Martínez, A.
dc.contributor.author
Fontana, Marcelo
dc.contributor.author
Pradel, A.
dc.date.available
2017-07-10T17:49:12Z
dc.date.issued
2007-04
dc.identifier.citation
Cuello, Gabriel Julio; Piarristeguy, A. A.; Fernández Martínez, A.; Fontana, Marcelo; Pradel, A.; Structure of chalcogenide glasses by neutron diffraction; Elsevier Science; Journal of Non-crystalline Solids; 353; 8-10; 4-2007; 729-732
dc.identifier.issn
0022-3093
dc.identifier.uri
http://hdl.handle.net/11336/20000
dc.description.abstract
The purpose of this work is to study the change in the structure of the Ge–Se network upon doping with Ag. We report here a neutron diffraction study on two glasses of the system Agx(Ge0.25Se0.75)100−x with different silver contents (x = 15 and 25 at.%) and for two different temperatures (10 and 300 K). The total structure factor S(Q) for the two samples has been measured by neutron diffraction using the two-axis diffractometer dedicated to structural studies of amorphous materials, D4, at the Institut Laue Langevin. We have derived the corresponding radial distribution functions for each sample and each temperature, which gives us an insight about the composition and temperature dependence of the correlation distances and coordination numbers in the short-range. Our results are compatible with the presence of both GeSe4/2 tetrahedra and Se–Se bonds. The Ag atoms are linked to Se in a triangular environment. Numerical simulations allowing the identification of the main peaks in the total pair correlation functions have complemented the neutron diffraction measurements.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Neutron Diffraction/Scattering
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Fast Ionic Conduction
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Modelling And Simulation
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Short-Range Order
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Ingeniería de los Materiales
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Ingeniería de los Materiales
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Structure of chalcogenide glasses by neutron diffraction
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-10T14:53:22Z
dc.journal.volume
353
dc.journal.number
8-10
dc.journal.pagination
729-732
dc.journal.pais
Países Bajos
dc.journal.ciudad
Ámsterdam
dc.description.fil
Fil: Cuello, Gabriel Julio. Institut Laue Langevin; Francia
dc.description.fil
Fil: Piarristeguy, A. A.. Universite Montpellier II; Francia
dc.description.fil
Fil: Fernández Martínez, A.. Institut Laue Langevin; Francia
dc.description.fil
Fil: Fontana, Marcelo. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Laboratorio de Sólidos Amorfos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Pradel, A.. Universite Montpellier II; Francia
dc.journal.title
Journal of Non-crystalline Solids
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022309307000051
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jnoncrysol.2006.12.036
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/0801.0868
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