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7 papers · 1 filter
Probing non-affine expansion with light scattering
Alesya Mikhailovskaya, Julien Fade, Jérôme Crassous
In disordered materials under mechanical stress, the produced deformation can deviate from the affine one already in the elastic regime. The nonaffine contribution was observed and…
Molecular dynamics of glycerol and glycerol-trehalose bioprotectant solutions nanoconfined in porous silicon
Rémi Busselez, Ronan Lefort, Mohammed Guendouz +3
Glycerol and trehalose-glycerol binary solutions are glass-forming liquids with remarkable bioprotectant properties. Incoherent quasielastic neutron scattering (QENS) is used to re…
Rich polymorphism of a rod-like liquid crystal (8CB) confined in two types of unidirectional nanopores
Régis Guégan, Denis Morineau, Ronan Lefort +5
We present a neutron and X-rays scattering study of the phase transitions of 4-n-octyl-4'-cyanobiphenyl (8CB) confined in unidirectional nanopores of porous alumina and porous sili…
Sliding and translational diffusion of molecular phases confined into nanotubes
Rémi Busselez, Claude Ecolivet, Régis Guégan +5
The remaining dynamical degrees of freedom of molecular fluids confined into capillaries of nano to sub-nanometer diameter are of fundamental relevance for future developments in t…
Structure and relaxation processes of an anisotropic molecular fluid confined into 1D nanochannels
Ronan Lefort, Denis Morineau, Régis Guégan +3
Structural order parameters of a smectic liquid crystal confined into the columnar form of porous silicon are studied using neutron scattering and optical spectroscopic techniques.…
Dynamics of 8CB confined into porous silicon probed by incoherent neutron backscattering experiments
Régis Guégan, Ronan Lefort, Wilfried Béziel +3
Confinement in the nanochannels of porous silicon strongly affects the phase behavior of the archetype liquid-crystal 4-n-octyl-4-cyanobiphenyl (8CB). A very striking phenom- enon…