Aarhus University Seal / Aarhus Universitets segl

A mechanism for ageing in a deeply supercooled molecular glass

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

DOI

Measurements of the decay of electric fields, formed spontaneously within vapour-deposited films ofcis-methyl formate, provide the first direct assessment of the energy barrier to secondary relaxation in a molecular glass. At temperatures far below the glass transition temperature, the mechanism of relaxation is shown to be through hindered molecular rotation. Magnetically-polarised neutron scattering experiments exclude diffusion, which is demonstrated to take place only close to the glass transition temperature.

OriginalsprogEngelsk
TidsskriftChemical Communications
Vol/bind57
Nummer52
Sider (fra-til)6368-6371
Antal sider4
ISSN1359-7345
DOI
StatusUdgivet - 4 jul. 2021

Bibliografisk note

Publisher Copyright:
© The Royal Society of Chemistry 2021.

Se relationer på Aarhus Universitet Citationsformater

ID: 220085242