Now showing 1 - 2 of 2
  • 2020-03-31Journal Article Research Paper
    [["dc.bibliographiccitation.issue","23"],["dc.bibliographiccitation.journal","Physical Review. B"],["dc.bibliographiccitation.volume","101"],["dc.contributor.author","Lee, Miru"],["dc.contributor.author","Vink, Richard L. C."],["dc.contributor.author","Krüger, Matthias"],["dc.date.accessioned","2021-01-20T10:42:03Z"],["dc.date.available","2021-01-20T10:42:03Z"],["dc.date.issued","2020-03-31"],["dc.description.abstract","We analyze the friction force exerted on a small probe particle sliding over an atomic-scale surface by means of a Green-Kubo relation and classical Molecular Dynamics simulations. We find that, on the atomic scale, the friction tensor can drastically vary as a function of position and sliding direction. The Green-Kubo relation yields this positional and directional dependence from equilibrium simulations of the time dependent covariance of force acting on the probe. We find, unexpectedly, that the positional and directional dependence of energy dissipation is related to the (much simpler) static force covariance, especially in the limit where the probe only mildly perturbs the surface particles. In contrast, the (free) energy landscape experienced by the probe is in general not a good indicator of local dissipation. We also discuss optimization strategies making use of the locally and directionally resolved friction tensor. This enables us to find optimal sliding paths and velocity protocols, e.g., minimizing energy dissipation, between two points on the surface in a given time."],["dc.identifier.arxiv","2003.14219v3"],["dc.identifier.doi","10.1103/PhysRevB.101.235426"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/79358"],["dc.language.iso","en"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area A | A01 Reibung unter aktiver Kontrolle in Systemen mit optimierten Freiheitsgraden"],["dc.relation.issn","2469-9950"],["dc.relation.issn","2469-9969"],["dc.relation.orgunit","Institut für Materialphysik"],["dc.title","Spatially resolved atomic-scale friction: Theory and Simulation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2021Journal Article Research Paper
    [["dc.bibliographiccitation.artnumber","174309"],["dc.bibliographiccitation.issue","17"],["dc.bibliographiccitation.journal","Physical Review. B"],["dc.bibliographiccitation.volume","104"],["dc.contributor.author","Lee, Miru"],["dc.contributor.author","Vink, Richard L. C."],["dc.contributor.author","Volkert, Cynthia Ann"],["dc.contributor.author","Krüger, Matthias"],["dc.date.accessioned","2022-01-11T14:05:55Z"],["dc.date.available","2022-01-11T14:05:55Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1103/PhysRevB.104.174309"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/97778"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-507"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area A | A01 Reibung unter aktiver Kontrolle in Systemen mit optimierten Freiheitsgraden"],["dc.relation","SFB 1073 | Topical Area A: Control of dissipation"],["dc.relation.eissn","2469-9969"],["dc.relation.issn","2469-9950"],["dc.relation.orgunit","Institut für Materialphysik"],["dc.title","Noncontact friction: Role of phonon damping and its nonuniversality"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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