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Updated: Dec 20, 2025

Measuring the Densities of Aqueous Glasses at Cryogenic Temperatures
Published on: June 28, 2017
Refractive Index at Low Temperature of Tetrachloromethane and Tetrafluoroethane Cryovacuum Condensates
Abdurakhman U Aldiyarov1, Dmitriy Yurievich Sokolov1, Assel Yerzhumayevna Nurmukan1
1Al-Farabi Kazakh National University Institute of Experimental and Theoretical Physics, Physico-Technical Faculty, al-Farabi Ave 71, Almaty 050040, Kazakhstan.
Abstract:
We present low-temperature measurements of the refractive index of cryofilms of tetrachloromethane and 1,1,1,2-tetrafluoroethane at different condensation and measurement temperatures between 16 and 130 K. Using cryovacuum condensation, we have been able to obtain thin films in an amorphous state for both substances despite them being very bad glass formers. Then, we have studied the evolution of the refractive index with an increasing temperature, including by transitions to ordered or partially disordered crystalline states.
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