COST-MP1303 Nanoscale Friction: Friction on the atomic scale across phase transitions
Third-party funded project
Project title COST-MP1303 Nanoscale Friction: Friction on the atomic scale across phase transitions
Principal Investigator(s) Meyer, Ernst
Organisation / Research unit Departement Physik / Nanomechanik (Meyer)
Project start 01.01.2015
Probable end 31.12.2017
Status Completed
Abstract

The aim is to explore the influence of photonic vs electronic friction in small nanometer-sized contacts. Friction and energy dissipation are explored by state-of-the-art force microscopy under ultrahigh vacuum conditions at variable temperatures. The influence of the order parameter in phase transitions, such as superconductive and charge density waves, is investigated in contact and non-contact mode. Dissipation via phononic degrees of freedom is explored  by the coverage of metallic and graphene samples with adsorbates. Damping on semiconductors with different doping concentrations and quantum dot systems is studied to probe the influence of electronic effects. Molecular systems in the form of single molecules or small aggregates are prepared to explore anisotropy effects and to determine the range of relevant interactions.

Keywords Atomic friction, nanotribology, atomic stick-slip
Financed by Swiss Government (Research Cooperations)
   

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15/12/2018