0000000000711078

AUTHOR

Stéphane Rols

showing 2 related works from this author

Inelastic neutron scattering due to acoustic vibrations confined in nanoparticles: theory and experiment

2008

The inelastic scattering of neutrons by nanoparticles due to acoustic vibrational modes (energy below 10 meV) confined in nanoparticles is calculated using the Zemach-Glauber formalism. Such vibrational modes are commonly observed by light scattering techniques (Brillouin or low-frequency Raman scattering). We also report high resolution inelastic neutron scattering measurements for anatase TiO2 nanoparticles in a loose powder. Factors enabling the observation of such vibrations are discussed. These include a narrow nanoparticle size distribution which minimizes inhomogeneous broadening of the spectrum and the presence of hydrogen atoms oscillating with the nanoparticle surfaces which enhan…

Condensed Matter - Materials ScienceQuasielastic scatteringMaterials sciencePhonon scatteringScattering[ PHYS.COND.CM-MS ] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Materials Science (cond-mat.mtrl-sci)FOS: Physical sciencesPhysics::Optics02 engineering and technologyNeutron scatteringInelastic scattering021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesInelastic neutron scattering3. Good healthElectronic Optical and Magnetic MaterialsX-ray Raman scattering0103 physical sciences[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Scattering theoryAtomic physics010306 general physics0210 nano-technology
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Lattice dynamics of the ionic superconductor Li4C60. Inelastic neutron scattering and powder averaged lattice dynamics (PALD) investigations

2016

Inorganic ChemistryPhysicsSuperconductivityLattice dynamicsCondensed matter physicsStructural BiologyIonic bondingGeneral Materials SciencePhysical and Theoretical ChemistryCondensed Matter PhysicsBiochemistryInelastic neutron scatteringActa Crystallographica Section A Foundations and Advances
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