Dielectric relaxation in vitreous borates at low temperatures |
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| Authors: | H.J.C.A. Quinten W.J.Th. Van Gemert J.M. Stevels |
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| Affiliation: | Laboratory of Inorganic Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands |
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| Abstract: | Dielectric relaxation measurements have been made in vitreous alkali borates from 4.2 to 300 K, and from 102 to 105 s?1. Two types of relaxation are present: the first, at about 25 K (103 s?1), is intimately related to the presence of tetrahedral BO4 units in distorted positions, and the second, at about 160 K (103 s?1), is correlated with water that is present in small quantities in glass. |
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