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DC Field | Value | Language |
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dc.contributor.author | Mitsa, V.M. | - |
dc.contributor.author | Holomb, R.M. | - |
dc.contributor.author | Lovas, G. | - |
dc.contributor.author | Veres, M. | - |
dc.contributor.author | Ivanda, M. | - |
dc.contributor.author | Kovach, T. | - |
dc.contributor.author | Міца, Володимир Михайлович | uk |
dc.date.accessioned | 2015-10-11T11:38:59Z | - |
dc.date.available | 2015-10-11T11:38:59Z | - |
dc.date.issued | 2014 | - |
dc.identifier.uri | https://dspace.uzhnu.edu.ua/jspui/handle/lib/4315 | - |
dc.description.abstract | Technologically modified g-GeS2(TiVj) glasses prepared by melt quenching from different temperatures (Ti) and with different cooling rates (Vj) were studied using Raman spectroscopy and model calculations. Differential Raman spectra {IRGeS2(TiV1)-IRGeS2(T2V1)} showed the splitting of the main, most intensive wide-band, centered at 340 cm-1. The position of the peaks found in the differential Raman spectra near 340 and 360 сm-1 and position of the main vibrational modes in the ordinary Raman spectra of low- and high-temperature crystalline phases (α-, -GeS2) were found to be in good agreement. Vibrational spectra of 4- and 6-member ring fragments selected from crystalline structure of -GeS2 were also determined using model calculations. Based on rings composed of GeS4 tetrahedrons connected by corners and edges the structural interpretation of the vibrational bands of g-GeS2(TiVj) at 360, 370 and 433 сm-1 in their Raman spectra was performed. The existence of homopolar Ge-Ge and S-S “defect” bonds in the structure of germanium disulfide glasses was proved by formation of 5-member rings. | uk |
dc.language.iso | en | uk |
dc.subject | germanium disulfide matrix | uk |
dc.subject | g-GeS2(TiVj) glasses | uk |
dc.title | Spectroscopic evidence of coexistence of clusters based on low (α) and high temperature (β) GeS2 crystalline phases in glassy germanium disulfide matrix | uk |
dc.type | Text | uk |
dc.pubType | Стаття | uk |
Appears in Collections: | Наукові публікації кафедри інформатики та фізико-математичних дисциплін Наукові публікації кафедри інформаційних управляючих систем та технологій |
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File | Description | Size | Format | |
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34_2014 MIPRO.pdf | 1.12 MB | Adobe PDF | View/Open |
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