Collective Dynamics of Lipid Membranes studied by Inelastic Neutron Scattering

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dc.creatorRheinstädter, M. C.
dc.creatorOllinger, C.
dc.creatorDemmel, F.
dc.creatorFragneto, G.
dc.creatorSalditt, T.
dc.date2004-02-02
dc.date2004-02-27
dc.date.accessioned2026-07-07T02:56:15Z
dc.date.available2026-07-07T02:56:15Z
dc.descriptionWe have studied the collective short wavelength dynamics in deuterated DMPC bilayers by inelastic neutron scattering. The corresponding dispersion relation $\hbarω$(Q) is presented for the gel and fluid phase of this model system. The temperature dependence of the inelastic excitations indicates a phase coexistence between the two phases over a broad range and leads to a different assignment of excitations than that reported in a preceding inelastic x-ray scattering study [Phys. Rev. Lett. {\bf 86}, 740 (2001)]. As a consequence, we find that the minimum in the dispersion relation is actually deeper in the gel than in the fluid phase. Finally, we can clearly identify an additional non-dispersive (optical) mode predicted by Molecular Dynamics (MD) simulations [Phys. Rev. Lett. {\bf 87}, 238101 (2001)].
dc.identifierhttps://arxiv.org/abs/cond-mat/0402048
dc.identifierhttp://arxiv.org/abs/cond-mat/0402048
dc.identifierPhys. Rev. Lett. 93, 108107 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.108107
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23247
dc.subjectSoft Condensed Matter
dc.subjectBiomolecules
dc.titleCollective Dynamics of Lipid Membranes studied by Inelastic Neutron Scattering
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