Resonant Raman Scattering by quadrupolar vibrations of Ni-Ag Core-shell Nanoparticles

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dc.creatorPortales, H.
dc.creatorSaviot, L.
dc.creatorDuval, E.
dc.creatorGaudry, M.
dc.creatorCottancin, E.
dc.creatorPellarin, M.
dc.creatorLerme, J.
dc.creatorBroyer, M.
dc.date2002-03-22
dc.date.accessioned2026-07-07T02:44:46Z
dc.date.available2026-07-07T02:44:46Z
dc.descriptionLow-frequency Raman scattering experiments have been performed on thin films consisting of nickel-silver composite nanoparticles embedded in alumina matrix. It is observed that the Raman scattering by the quadrupolar modes, strongly enhanced when the light excitation is resonant with the surface dipolar excitation, is mainly governed by the silver electron contribution to the plasmon excitation. The Raman results are in agreement with a core-shell structure of the nanoparticles, the silver shell being loosely bonded to the nickel core.
dc.description3 figures. To be published in Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/cond-mat/0203468
dc.identifierhttp://arxiv.org/abs/cond-mat/0203468
dc.identifierPhys. Rev. B, 65 (2002) 165422
dc.identifierdoi:10.1103/PhysRevB.65.165422
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19066
dc.subjectCondensed Matter
dc.titleResonant Raman Scattering by quadrupolar vibrations of Ni-Ag Core-shell Nanoparticles
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