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| 001 | 465571 | ||
| 005 | 20250724175733.0 | ||
| 024 | 7 | _ | |a 10.1016/j.jnoncrysol.2021.121075 |2 doi |
| 024 | 7 | _ | |a 0022-3093 |2 ISSN |
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| 100 | 1 | _ | |a Stronski, A. |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Structural order in (As$_{2}$S$_{3}$)x(GeS$_{2}$)$_{1-x}$ glasses |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2021 |b Elsevier Science |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 500 | _ | _ | |a Waiting for fulltext |
| 520 | _ | _ | |a Structural order in the chalcogenide glasses of (As$_2$S$_3$)$_x$(GeS$_2$)$_{1−x}$ (x = 0.0, 0.1, 0.2, 0.4, 0.6, 0.8, 1.0) system is examined in terms of the parameters of local atomic structure as a function of composition x, obtained using high-resolution Raman spectroscopy, high-energy synchrotron X-ray diffraction, extended X-ray absorption fine structure spectroscopy and reverse Monte-Carlo modeling of diffraction data. As a result of the research carried out it is revealed that the structural order of As-rich (x > 0.4) and Ge-rich (x < 0.4) glasses is organized by the main As−S and Ge−S structural motifs based on pyramidal AsS$_3$ and tetrahedral GeS$_4$ units linked by =As−S−As= and triple bondGe−S−Getriple bond structural configurations, respectively; while for the intermediate compound with x = 0.4 the structural network seems to be better homogeneous on the nanoscale due to appearance of triple bondGe−S−As= mixed structural configurations resulting in misbalance between corner-shared and edge-shared tetrahedral units in comparison with their predicted ratio for binary GeS$_2$ glass and the structure of this alloy is similar to the structure of the stoichiometric glass Ge$_{18.2}$As$_{18.2}$S$_{63.6}$ (i.e., x = 0.455) consisting of a coner-shared network of homogeneously mixed GeS$_4$ tetrahedra and AsS$_3$ pyramids. Based on the structural studies, it is also established that the balance between corner-shared and edge-shared GeS$_4$ tetrahedra in the glass backbone of the investigated GeS$_2$-based glasses seems to be responsible for the interconnectivity between two speculative Raman modes at 370 and 430 cm$^{−1}$. Compositional changes in studied glasses result in the evolution of the observed Raman bands. Such dependences of characteristic constituent Raman bands’ intensities showed that (As$_2$S$_3$)$_x$(GeS$_2$)$_{1−x}$ samples contain different nanophases whose concentration is changing along chosen compositional cross-section. |
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| 700 | 1 | _ | |a Kavetskyy, T. |0 P:(DE-H253)PIP1008282 |b 1 |
| 700 | 1 | _ | |a Revutska, L. |0 P:(DE-HGF)0 |b 2 |e Corresponding author |
| 700 | 1 | _ | |a Shportko, K. |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Popovych, M. |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Kaban, I. |0 P:(DE-H253)PIP1007906 |b 5 |
| 700 | 1 | _ | |a Jóvári, P. |0 P:(DE-H253)PIP1007402 |b 6 |
| 773 | _ | _ | |a 10.1016/j.jnoncrysol.2021.121075 |g Vol. 572, p. 121075 - |0 PERI:(DE-600)1500501-X |p 121075 |t Journal of non-crystalline solids |v 572 |y 2021 |x 0022-3093 |
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| 910 | 1 | _ | |a V.E. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 41 Nauki Ave., 03028 Kyiv, Ukraine |0 I:(DE-HGF)0 |b 0 |6 P:(DE-HGF)0 |
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