Dipolar freezing of glassy K1-xLixTaO3x = 0.011
- 1 December 1991
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 124 (1) , 237-242
- https://doi.org/10.1080/00150199108209444
Abstract
Collective dipolar freezing of K0.989Li0.011TaO3 is evidenced by dielectric dispersion measurements in the Millihertz regime to occur at Tg ∼ 33 K. The width of the dielectric loss spectrum reveals a sudden spread of the distribution of relaxation times towards τmax = ∞ as T ↪ Tg in accordance with a Vogel-Fulcher type law.Keywords
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