University of Rouen

About: University of Rouen is a education organization based out in Rouen, France. It is known for research contribution in the topics: Population & Receptor. The organization has 7299 authors who have published 13209 publications receiving 313477 citations.

Directional effects of heavy-ion irradiation in Tb/Fe multilayers

Abstract: Deposition of a ${}^{57}\mathrm{Fe}$ probe layer at the top of iron layers in Tb/Fe multilayers has allowed us to study locally the atomic mixing induced by high-energy heavy-ion irradiation at the Tb-on-Fe interface. The structural and magnetic transformations induced by ion irradiation of the probe layer were investigated by ${}^{57}\mathrm{Fe}$ conversion electron M\"ossbauer spectrometry. To study directional effects of the ion beam, we have irradiated a stack of two pieces of the same multilayer set face to face. No change in the average composition of the mixed Tb-on-Fe interface was observed when the incident ion direction is changed from a Tb layer to a Fe layer, or from a Fe layer to a Tb layer.

Chiral ionic liquids, a renewal for the chemistry of chiral solvents? Design, synthesis and applications for chiral recognition and asymmetric synthesis

Abstract: Chiral ionic solvents were almost unexplored before the last five years. This field which is of increasing importance could constitute a renewal for the chemistry of chiral solvents. So far reported examples are designed either from the chiral pool (aminoacids, hydroxyacids, amines, aminoalcohols, terpenes and alkaloids) or by asymmetric synthesis; they can bear central, axial or planar chirality. Modern applications in asymmetric synthesis, enzymatic chemistry, chiral chromatography and NMR are surveyed. Their use in the field of liquid crystals and for stereoselective polymerisation are also discussed. At the end of the article, a series of tables is compiled including all the CILs described to date and their physical properties.