%0 Journal Article %T On the structure of Ge–As–Te–Cu glasses %+ Institute for Solid State Physics [Budapest] %+ Department of Materials Science and Engineering %+ Institut des Sciences Chimiques de Rennes (ISCR) %+ Institute for Complex Materials %+ Laboratoire Léon Brillouin (LLB - UMR 12) %+ Deutsches Elektronen-Synchrotron [Hamburg] (DESY) %A Jóvári, Pal %A Lucas, Pierre %A Yang, Zhiyong %A Bureau, Bruno %A Kaban, Ivan %A Beuneu, Brigitte %A Pantalei, Claudia %A Bednarčik, Jozef %Z The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 312284. P.J. was supported by OTKA (Hungarian Basic Research Fund) Grant No. 083529. This research was supported by the Partner University Fund, and the CNRS International Associated Laboratory for Materials & Optics (LIA-MATEO). %< avec comité de lecture %@ 0022-3093 %J Journal of Non-Crystalline Solids %I Elsevier %V 433 %P 1--5 %8 2016 %D 2016 %R 10.1016/j.jnoncrysol.2015.11.003 %K EXAFS %K Glass structure %K Infrared glasses %K neutron diffraction %K Reverse Monte Carlo simulation %K X-ray diffraction %Z Chemical Sciences %Z Chemical Sciences/Material chemistryJournal articles %X Short range order in glassy 0.9(Ge0.1As0.15Te0.75)–0.1Cu (GATC1) and 0.9(Ge0.05As0.55Te0.4)–0.1Cu (GATC2) was studied by neutron- and X-ray diffraction as well as EXAFS (extended X-ray absorption fine structure) measurements at the K-edges of all components. The reverse Monte Carlo simulation technique was used to create models consistent with all experimental datasets. It was found that Cu binds predominantly to Te in GATC1 while Cu–As and Cu–Cu bonding is also significant in GATC2. Ge and As atoms have 4 and 3 Ge/As/Te neighbors in both compositions. In GATC1 the formation of ‘extra’ Te–Te bonds can be observed, similarly to GeTe4–AgI glasses %G English %2 https://univ-rennes.hal.science/hal-01236430/document %2 https://univ-rennes.hal.science/hal-01236430/file/geastecu_jovari_post_print.pdf %L hal-01236430 %U https://univ-rennes.hal.science/hal-01236430 %~ CEA %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ ENSC-RENNES %~ OPENAIRE %~ ISCR %~ SCR_VC %~ STATS-UR1 %~ UR1-SPM %~ INC-CNRS %~ IRAMIS-LLB %~ CEA-UPSAY %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ UNIV-PARIS-SACLAY %~ CEA-UPSAY-SACLAY %~ IVER %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ UR1-MMS %~ GS-ENGINEERING %~ IRAMIS %~ GS-CHIMIE %~ GS-PHYSIQUE %~ TEST2-HALCNRS