Letter Cite This: Nano Lett. 2018, 18, 6842−6849
pubs.acs.org/NanoLett
Mechanical Vibrations of Atomically Defined Metal Clusters: From Nano- to Molecular-Size Oscillators Paolo Maioli,*,† Tatjana Stoll,†,‡ Huziel E. Sauceda,§ Israel Valencia,∥ Aude Demessence,⊥ Franck Bertorelle,† Aureĺ ien Crut,† Fabrice Valleé ,† Ignacio L. Garzoń ,# Giulio Cerullo,‡ and Natalia Del Fatti† †
Institut Lumière Matière, Université de Lyon, CNRS, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France Dipartimento di Fisica, Politecnico di Milano, IFN-CNR, Piazza L. da Vinci 32, I-20133 Milano, Italy § Fritz-Haber-Institute der Max-Planck-Gesellschaft, 14195 Berlin, Germany ∥ Facultad de Estudios Superiores-Iztacala, Universidad Nacional Autónoma de México, 54090 Tlanepantla, Estado de México México ⊥ Institut de Recherches sur la Catalyse et l’Environnement de Lyon (IRCELYON), Université de Lyon, CNRS, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France # Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, 01000 CDMX, México
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S Supporting Information *
ABSTRACT: Acoustic vibrations of small nanoparticles are still ruled by continuum mechanics laws down to diameters of a few nanometers. The elastic behavior at lower sizes (