Mechanical Vibrations of Atomically Defined Metal Clusters: From

Sep 24, 2018 - For ligand-protected clusters, they show a pronounced effect of the .... The longer period displays a linear dependence on the cluster ...
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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

Nano Lett. 2018.18:6842-6849. Downloaded from pubs.acs.org by IOWA STATE UNIV on 01/21/19. For personal use only.



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 (