Revealing Sub-Surface Vibrational Modes by Atom-Resolved Damping Force Spectroscopy

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dc.creatorAshino, Makoto
dc.creatorWiesendanger, Roland
dc.creatorKhlobystov, Andrei N.
dc.creatorBerber, Savas
dc.creatorTomanek, David
dc.date2009-04-17
dc.date.accessioned2026-07-07T13:14:21Z
dc.date.available2026-07-07T13:14:21Z
dc.descriptionWe propose to use the damping signal of an oscillating cantilever in dynamic atomic force microscopy as a noninvasive tool to study the vibrational structure of the substrate. We present atomically resolved maps of damping in carbon nanotube peapods, capable of identifying the location and packing of enclosed Dy@C82 molecules as well as local excitations of vibrational modes inside nanotubes of different diameter. We elucidate the physical origin of damping in a microscopic model and provide quantitative interpretation of the observations by calculating the vibrational spectrum and damping of Dy@C82 inside nanotubes with different diameters using ab initio total energy and molecular dynamics calculations.
dc.description4 pages, 3 figures, to be published in Phys. Rev. Lett.
dc.identifierhttps://arxiv.org/abs/0904.2666
dc.identifierhttp://arxiv.org/abs/0904.2666
dc.identifierPhysical Review Letters 102, 195503 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.195503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230183
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleRevealing Sub-Surface Vibrational Modes by Atom-Resolved Damping Force Spectroscopy
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