%0 Journal Article
%A Pethes, I.
%A Nazabal, V.
%A Chahal, R.
%A Bureau, B.
%A Kaban, I.
%A Beuneu, B.
%A Bednarcik, J.
%A Jóvári, P.
%T The structure of near stoichiometric Ge-Ga-Sb-S glasses: A reverse Monte Carlo study
%J Journal of non-crystalline solids
%V 505
%@ 0022-3093
%C Amsterdam [u.a.]
%I Elsevier Science
%M PUBDB-2018-05497
%P 340 - 346
%D 2019
%Z © Elsevier B.V.
%X The structure of Ge<sub>22</sub>Ga<sub>3</sub>Sb<sub>10</sub>S<sub>65</sub> and Ge<sub>15</sub>Ga<sub>10</sub>Sb<sub>10</sub>S<sub>65</sub> glasses was investigated by neutron diffraction (ND), X-ray diffraction (XRD), and extended X-ray absorption fine structure (EXAFS) measurements at the Ge, Ga and Sb K-edges. Experimental data sets were fitted simultaneously in the framework of the reverse Monte Carlo (RMC) simulation technique. Short range order parameters were determined from the obtained large-scale configurations. It was found that the coordination numbers of Ge, Sb and S are around the values predicted by the Mott-rule (4, 3 and 2, respectively). The Ga atoms have on average 4 nearest neighbors. The structure of these stoichiometric glasses can be described by the chemically ordered network model: Ge-S, Ga-S and Sb-S bonds are the most important. Long Sb-S distances (0.3–0.4 Å higher than the usual covalent bond lengths) are observed, suggesting that Sb atoms can be found in various local environments.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000459643000040
%R 10.1016/j.jnoncrysol.2018.11.009
%U https://bib-pubdb1.desy.de/record/417264