Low-energy excitations in a low-viscous glass-forming liquid

Bulletin of materials science

Angelos G Kalampounias¹ 

[1] Department of Chemical Engineering, University of Patras, GR 26504, Patras, Greece and Foundation for Research and Technology Hellas â€�?? Institute of Chemical Engineering and High Temperature Chemical Processes, FORTH/ICE-HT, P.O. Box 1414, GR 26504, Patras, Greece$$Department of Chemical Engineering, University of Patras, GR 26504, Patras, Greece and Foundation for Research and Technology Hellas â€�?? Institute of Chemical Engineering and High Temperature Chemical Processes, FORTH/ICE-HT, P.O. Box 1414, GR 26504, Patras, GreeceDepartment of Chemical Engineering, University of Patras, GR 26504, Patras, Greece and Foundation for Research and Technology Hellas â€�?? Institute of Chemical Engineering and High Temperature Chemical Processes, FORTH/ICE-HT, P.O. Box 1414, GR 26504, Patras, Greece$$

关键词: Low-frequency Raman;    Boson;    liquids;    Raman spectroscopy;    low-viscous liquid.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Polarized and depolarized low frequency Raman spectra of a liquid mixture, viz. 0.15LiClâ€�??0.85H₂O, has been analysed in detail in order to elucidate the temperature and polarization characteristics of quasi-elastic line and Boson peak. The employed fitting procedure shows more convincingly that the Boson peak contribution to the overall low frequency Raman pattern is present even in this low-viscous liquid. The degree of disorder in this liquid is not so high and certain micro-ordering effects may take place due to hydrogen bonding. The results are discussed in the framework of the current phenomenological status of the field.

【 授权许可】

Unknown