Structural correlation of the chalcogenide Ge40Se60 glass
Source abstract
Abstract
Binary Ge40Se60 glass was prepared using the melt-quench technique. The total structure factors, S(K), are obtained using the X-ray diffraction in the wave vector interval 0.28 ≤ K ≤ 6.5 A−1. The appearance of the first sharp diffraction peak (FSDP) in the structure factor indicates the presence of the intermediate range order. Radial distribution functions, RDF(r), have been obtained using either the conventional (Fourier) transformation or the Monte Carlo simulation of the experimental X-ray data. The short range order parameters deduced from the Monte Carlo total correlation, T(r), functions are better than those obtained from the conventional (Fourier) T(r) data. Gaussian analyses of the total correlation function show that Ge2(Se1/2)6 molecular units are the basic structural units for the investigated Ge40Se60 glass.
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Research context
OpenAlex topics: Phase-change materials and chalcogenides · Glass properties and applications · Solid-state spectroscopy and crystallography
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References (23)
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