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A mechanism for age...
A mechanism for ageing in a deeply supercooled molecular glass
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- Cassidy, Andrew (författare)
- Aarhus University
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- Jørgensen, Mads R.V. (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Aarhus University
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- Glavic, Artur (författare)
- Paul Scherrer Institute
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- Lauter, Valeria (författare)
- Oak Ridge National Laboratory
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- Plekan, Oksana (författare)
- Elettra Sincrotrone Trieste
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- Field, David (författare)
- Aarhus University
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(creator_code:org_t)
- 2021
- 2021
- Engelska 4 s.
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 57:52, s. 6368-6371
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://pubs.rsc.org...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- ref (ämneskategori)
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