High frequency optic-like mode and vibrational density of states in ionic liquids and glasses


We propose a comparative study of the high-frequency optic-like mode and Boson peak modes observed in the vibrational density of states (DOS) in the glass phase of the two model ionic liquids 1buthyl-3-methylimidazolium chloride ([C4MIM]Cl) and 1buthyl-3-methylimidazolium bromide ([C4MIM]Br) by means of Inelastic Neutron Scattering (INS). Aim of the experiment is to obtain a first experimental analysis of the correlation (if any) between boson peak modes and concentration fluctuations dynamics in ionic systems. Moreover we aim at obtaining for the first time an experimental characterization of differences in behavior of the high-frequency optic-like mode in liquids and glasses.

DOI https://doi.org/10.5286/ISIS.E.24089259
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24089259
Creator Dr Maria Grazia Izzo; Professor Per Jacobsson; Dr Aleksandar Matic; Dr Stefano Cazzato
Publisher ISIS Neutron and Muon Source
Publication Year 2015
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2012-11-21T08:54:11Z
Temporal Coverage End 2012-11-28T08:52:34Z