Refractive Index at Low Temperature of Tetrachloromethane and Tetrafluoroethane Cryovacuum Condensates

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 fo...

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Bibliographic Details
Published in:ACS omega 2020-05, Vol.5 (20), p.11671-11676
Main Authors: Aldiyarov, Abdurakhman U, Sokolov, Dmitriy Yurievich, Nurmukan, Assel Yerzhumayevna, Ramos, Miguel Angel
Format: Article
Language:English
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Summary: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.
ISSN:2470-1343
2470-1343
DOI:10.1021/acsomega.0c00969