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Molecular dynamics simulation of non-contact atomic force microscopy of an ordered monolayer consisting of single united atoms chemisorbed strongly on a continuum substrate
- Source :
- Applied Surface Science. 210:117-122
- Publication Year :
- 2003
- Publisher :
- Elsevier BV, 2003.
-
Abstract
- To study interaction between a single atom protrusion and molecules in a self-assembled monolayer during non-contact atomic force microscopy (nc-AFM), we attempted molecular dynamics (MD) simulation using a monolayer consisting of united CH 3 atoms with a mass ( m 0 ). The interaction of a single gold atom tip with the united atoms and a continuum gold substrate was treated explicitly in terms of microscopic potentials under temperature control with Berendsen’s thermostat. On the other hand, the probe tip with an artificial reduced mass of ca. 600 m 0 was bound to a cantilever spring in order to measure its macroscopic nc-AFM behavior. Energy dissipation as a function of temperature was also studied.
- Subjects :
- Cantilever
Chemistry
General Physics and Astronomy
Self-assembled monolayer
Surfaces and Interfaces
General Chemistry
Reduced mass
Condensed Matter Physics
Molecular physics
Surfaces, Coatings and Films
Molecular dynamics
Monolayer
Atom
Molecule
Atomic physics
Non-contact atomic force microscopy
Subjects
Details
- ISSN :
- 01694332
- Volume :
- 210
- Database :
- OpenAIRE
- Journal :
- Applied Surface Science
- Accession number :
- edsair.doi...........e46381158d76023b3135cb529c69e470
- Full Text :
- https://doi.org/10.1016/s0169-4332(02)01490-3