BURGIN, Julien; LANGOT, P.; ARBOUET, Arnaud; MARGUERITAT, Jeremie; GONZALO, J.; AFONSO, C.N.; VALLÉE, F.; MLAYAH, Adnen; ROSELL, M.D.; VAN TENDELOO, G.

doi:10.1021/nl073123r

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BURGIN, Julien
Centre de physique moléculaire optique et hertzienne [CPMOH]

LANGOT, P.
Centre de physique moléculaire optique et hertzienne [CPMOH]

ARBOUET, Arnaud
Laboratoire Physique des Solides de Toulouse
Centre d'élaboration de matériaux et d'études structurales [CEMES]

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Nano Letters. 2008-04-01, vol. 8, p. 1296

American Chemical Society

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Using ultrafast spectroscopy, we investigated electron–lattice coupling and acoustic vibrations in self-assembled silver nanocolumns embedded in an amorphous Al2O3 matrix. The measured electron–lattice energy exchange time is smaller in the nanocolumns than in bulk silver, with a value very close to that of isolated nanospheres with comparable surface to volume ratio. Two vibration modes were detected and ascribed to the breathing and extensional mode of the nanocolumns, in agreement with numerical simulations< Leer menos

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Acoustic Vibration Modes and Electron–Lattice Coupling in Self-Assembled Silver Nanocolumns

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