| 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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Giugni, Andrea
University of Milan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Thermal Treatment Effects on PMN-0.4PT/Fe Multiferroic Heterostructures
- 2017Experimental Route to Scanning Probe Hot Electron Nanoscopy (HENs) Applied to 2D Materialcitations
- 2017The role of surface tension in the crystallization of metal halide perovskitescitations
- 2016Laboratory injection molder for the fabrication of polymeric porous poly-epsilon-caprolactone scaffolds for preliminary mesenchymal stem cells tissue engineering applicationscitations
- 2015Fabrication, Mercury Intrusion Porosimetry Characterization and In Vitro Qualitative Analysis of Biocompatibility of Various Porosities Polycaprolactone Scaffoldscitations
- 2015Fabrication, Mercury Intrusion Porosimetry Characterization and In Vitro Qualitative Analysis of Biocompatibility of Various Porosities Polycaprolactone Scaffoldscitations
- 2015Development, characterization and cell cultural response of 3d biocompatible micro-patterned poly-ε-caprolactone scaffolds designed and fabricated integrating lithography and micromolding fabrication techniquescitations
- 2014Development, characterization and cell cultural response of 3d biocompatible micro-patterned poly-$ɛ$-caprolactone scaffolds designed and fabricated integrating lithography and micromolding fabrication techniquescitations
- 2014Adiabatic nanofocusing: Spectroscopy, transport and imaging investigation of the nano worldcitations
- 2013Molding of plasmonic resonances in metallic nanostructures: Dependence of the non-linear electric permittivity on system size and temperaturecitations
- 2012Ultraviolet and visible Brillouin scattering study of viscous relaxation in 3-methylpentane down to the glass transitioncitations
- 2012Nanoplasmonic structures for biophotonic applications: SERS overviewcitations
Places of action
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article
Ultraviolet and visible Brillouin scattering study of viscous relaxation in 3-methylpentane down to the glass transition
Abstract
Brillouin light scattering spectra from transverse and longitudinal acoustic waves in liquid and supercooled 3-methylpentane have been collected from room temperature down to 80 K, just above the glass transition. Spectra at different wave vectors have been obtained using 532 nm and 266 nm excitation. We found evidence of a shear relaxation with a characteristic time of 100 s at the glass transition which only partly accounts for the relaxation observed in the propagation and attenuation of the longitudinal modes. The inclusion of a relaxing bulk viscosity contribution with a relaxation time of the order of 102 ns at the glass transition is found to adequately reproduce the experimental data including transient grating data at a much lower frequency. A consistent picture of relaxed shear and bulk moduli as a function of temperature is derived. These two quantities are found to be related by a linear relation suggesting that a Cauchy-like relation holds also above the glass transition.