| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Jakobsen, Bo
Roskilde University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024RUSC (Roskilde University Shear Code)
- 2023Solvothermal vapor annealing setup for thin film treatment:A compact design with in situ solvent vapor concentration probecitations
- 2023Solvothermal vapor annealing setup for thin film treatmentcitations
- 2023Thin film and bulk morphology of PI-PS-PMMA miktoarm star terpolymers with both weakly and strongly segregated arm pairs
- 2022Piezoelectric shear rheometrycitations
- 2018High-pressure cell for simultaneous dielectric and neutron spectroscopycitations
- 2015Communication: High pressure specific heat spectroscopy reveals simple relaxation behavior of glass forming molecular liquidcitations
- 2014High-Resolution Reciprocal Space Mapping for Characterizing Deformation Structurescitations
- 2007Investigation of the deformation structure in an aluminium magnesium alloy by high angular resolution three-dimensional X-ray diffractioncitations
- 2007Direct determination of elastic strains and dislocation densities in individual subgrains in deformation structurescitations
- 2006In-situ studies of bulk deformation structures: Static properties under load and dynamics during deformation
- 2005Dielectric and shear mechanical relaxations in glass-forming liquidscitations
Places of action
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article
Communication: High pressure specific heat spectroscopy reveals simple relaxation behavior of glass forming molecular liquid
Abstract
The frequency dependent specific heat has been measured under pressure for the molecular glass forming liquid 5-polyphenyl-4-ether in the viscous regime close to the glass transition. The temperature and pressure dependences of the characteristic time scale associated with the specific heat is compared to the equivalent time scale from dielectric spectroscopy performed under identical conditions. It is shown that the ratio between the two time scales is independent of both temperature and pressure. This observation is non-trivial and demonstrates the existence of specially simple molecular liquids in which different physical relaxation processes are both as function of temperature and pressure/density governed by the same underlying “inner clock.” Furthermore, the results are discussed in terms of the recent conjecture that van der Waals liquids, like the measuredliquid, comply to the isomorph theory