Introduction
Tomlinson Movie
Macroscopic Friction
The law of Leonardo (da Vinci)
The law of Euler and Amontons
The law of Coulomb
Historical abstract
Asperities
Adhesion models
Friction Force Microscopy
Principle of measuring
Measuring Topology
Measuring Friction
Both Channels
Calibration
Dissipation
Self assessment
Tomlinson's mechanism
Phenomenology I
Phenomenology II
Mechanical adiabaticity
Distinguish positions
Playing Tomlinson
Friction - a pinning problem
2D Friction
Critical Curves
Historical Background
Research Projects
Simulator Applet
The first Picture
The Panels
Parameters
Post processing
Statistics
Glossary
Textbook
 

Tomlinson's mechanism

deutsch


The solution for the observed phenomenon of atomic friction has been found already in 1929 by the british physicist G. A. Tomlinson. He proposed a mechanism, based upon the occurence of instable equilibrium positions of atoms in a conservative potential. He showed that it may be impossible under certain circumstances to have an adiabatic motion of all the atoms involved in the sliding process.

This trail shows the principle oft Tomlinson's mechanism, a mathematical description and let you play with the important parameters within a simple applet.

 

Subsections:

Phenomenology I
Phenomenology II
Mechanical adiabaticity
Distinguish positions
Playing Tomlinson
Friction - a pinning problem
2D Friction
Critical Curves
Historical Background
  Friction Force Microscopy                  Research Projects

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