Deconstructing the governing dissipative phenomena in the nanoscale
An expression describing the controlling parameters involved in short range nanoscale dissipation is proposed and supported by simulations and experimental findings. The expression is deconstructed into the geometrical, dynamic, chemical and mechanical properties of the system. In atomic force micro...
| Autores: | , , , , |
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| Tipo de recurso: | informe técnico |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/102982 |
| Acceso en línea: | https://hdl.handle.net/2117/102982 |
| Access Level: | acceso abierto |
| Palabra clave: | Atomic force microscopy Nanoelectronics Conservative Dissipative Nanoscale Decoupling Forces Atomic force microcopy Microscòpia de força atòmica Nanoelectrònica Àrees temàtiques de la UPC::Física Àrees temàtiques de la UPC::Enginyeria electrònica |
| Sumario: | An expression describing the controlling parameters involved in short range nanoscale dissipation is proposed and supported by simulations and experimental findings. The expression is deconstructed into the geometrical, dynamic, chemical and mechanical properties of the system. In atomic force microscopy these are translated into 1) tip radius and tip-sample deformation, 2) resonant frequency and oscillation amplitude and 3) hysteretic and viscous dissipation. The latter are characteristic parameters defining the chemical and mechanical properties of the tip-sample system. Long range processes are also discussed and footprints are identified in experiments conducted on mica and silicon samples. The present methodology can be exploited to validate or invalidate nanoscale dissipative models by comparing predictions with experimental observables. |
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