Abstract
In this paper the results of EPR investigation of Mn, Ag and Cu-doped Ge-S glasses are presented. In Ag and Cu-doped Ge40S60 glasses a new signal was found which is tightly associated with concentration of Ag and Cu. Some valuable information on the structure and the character of bonds in the glass-forming regions of Ge-S system were obtained. We have identified Ge [4 S] and Ge [2 Ge 2 S] tetrahedra as structural units in second glass-forming region of Ge-S system. In the first glass-forming region Ge [4 S] tetrahedra were identified as structural units, however, the nearest neighbours Ge-S distances are shorter and the character of bonds in Ge25S75 glass is much more covalent than in Ge40S60 one.
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Durný, R. EPR study of impurities in Ge-S glasses. Czech J Phys 30, 573–585 (1980). https://doi.org/10.1007/BF01596306
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DOI: https://doi.org/10.1007/BF01596306