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Bulletin of Materials Science

, Volume 36, Issue 4, pp 607–611 | Cite as

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

  • ANGELOS G KALAMPOUNIASEmail author
Article

Abstract

Polarized and depolarized low frequency Raman spectra of a liquid mixture, viz. 0·15LiCl–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.

Keywords

Low-frequency Raman Boson liquids Raman spectroscopy low-viscous liquid 

Notes

Acknowledgement

The author wishes to thank Prof G N Papatheodorou and Dr G A Voyiatzis for providing experimental facilities.

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Copyright information

© Indian Academy of Sciences 2013

Authors and Affiliations

  1. 1.Department of Chemical Engineering, University of Patras, GR 26504, Patras, Greece and Foundation for Research and Technology Hellas – Institute of Chemical Engineering and High Temperature Chemical Processes, FORTH/ICE-HTPatrasGreece

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