New dielectric properties of glasses at very low temperatures
Open Access
- 1 January 1977
- journal article
- Published by EDP Sciences in Journal de Physique Lettres
- Vol. 38 (6) , 153-156
- https://doi.org/10.1051/jphyslet:01977003806015300
Abstract
The very low frequency dielectric constant of borosilicate glasses has been measured down to 5 mK. A new law in Log T/ω and a non-linear field effect have been found and are explained by a very broad distribution of the relaxation times for the reorientation of the dipoles. The characteristic tunneling frequencies are lower than the corresponding ones deduced from the acoustic propertiesKeywords
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