Control of Friction at the Atomic Scale
Abstract
We will discuss techniques to control friction at the atomic scale and at the time of sliding. Our experiments involve the AFM tip sliding on the vibrating surface mounted on the piezo-element. Our theoretical/numerical research involves development of algorithms to control friction towards targeted behaviors. In particular, we will discuss a terminal attractor algorithm to control frictional dynamics of an array of particles towards pre-assigned values of the frictional force. This control technique is robust and significantly reduces the transient time to reach the prescribed behavior. Only the average sliding velocity of the array is needed in order to apply the proposed control.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2004
- Bibcode:
- 2004APS..MARS18012B