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Refractive Index at Low Temperature of Tetrachloromethane and Tetrafluoroethane Cryovacuum Condensates
Author(s) -
A. Aldiyarov,
D. Sokolov,
Assel Nurmukan,
M. A. Ramos
Publication year - 2020
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.0c00969
Subject(s) - refractive index , condensation , amorphous solid , index (typography) , materials science , glass transition , thermodynamics , analytical chemistry (journal) , chemistry , composite material , crystallography , polymer , organic chemistry , physics , optoelectronics , world wide web , computer science
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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