title: Incoherent quasielastic neutron scattering study of molecular dynamics of 4-n-octyl-4'-cyanobiphenyl.
abstract: We report incoherent quasielastic neutron scattering experiments on the thermotropic liquid crystal 4-n-octyl-4'-cyanobiphenyl. The combination of time-of-flight and backscattering data allows analysis of the intermediate scattering function over about three decades of relaxation times. Translational diffusion and uniaxial molecular rotations are clearly identified as the major relaxation processes in, respectively, the nanosecond and picosecond time scales.
authors.affiliation: Institut de Physique, UMR-CNRS 6251, Campus de Beaulieu, 35042 Rennes Cedex, France. ronan.lefort@univ-rennes1.fr
authors.forename: Ronan
authors.initials: R
authors.lastname: Lefort
authors.forename: Denis
authors.initials: D
authors.lastname: Morineau
authors.forename: Régis
authors.initials: R
authors.lastname: Guégan
authors.forename: Claude
authors.initials: C
authors.lastname: Ecolivet
authors.forename: Mohammed
authors.initials: M
authors.lastname: Guendouz
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Zanotti
authors.forename: Bernhard
authors.initials: B
authors.lastname: Frick
mesh_terms: D001713:Biphenyl Compounds / Q000737:chemistry*; D003198:Computer Simulation; D004058:Diffusion; D008956:Models, Chemical; D009502:Neutrons; D009570:Nitriles / Q000737:chemistry*; D011789:Quantum Theory; D012399:Rotation; D012542:Scattering, Radiation; D013696:Temperature; D013997:Time Factors
chemical_list: C495061:4'-octyl-4-cyanobiphenyl; D001713:Biphenyl Compounds; D009570:Nitriles