Abstract
The use of germanate glasses in technological applications, such as optical fibers and infrared transmitting windows, has stimulated extensive investigations of their physical properties. The refractive index, density, thermal expansion coefficient, and electrical conductivity of alkali germanates were found to exhibit extrema as a function of alkali oxide content [1-4]. This behaviour is widely known as the “germanate anomaly effect”.
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References
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Yiannopoulos, Y., Kamitsos, E.I., Jain, H. (1997). Structure of Potassium Germanate Glasses By Vibrational Spectroscopy. In: Andriesh, A., Bertolotti, M. (eds) Physics and Applications of Non-Crystalline Semiconductors in Optoelectronics. NATO ASI Series, vol 36. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5496-3_23
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DOI: https://doi.org/10.1007/978-94-011-5496-3_23
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