Back to Search
Start Over
Theoretical investigation on force sensitivity in Q-controlled phase-modulation atomic force microscopy in constant-amplitude mode.
- Source :
-
Journal of Applied Physics . Mar2008, Vol. 103 Issue 5, p054305. 4p. 2 Diagrams, 1 Graph. - Publication Year :
- 2008
-
Abstract
- We theoretically investigate the force sensitivity of phase-modulation atomic force microscopy in the constant amplitude mode with Q-control technique, which enables to increase or decrease the effective Q factor (Qeff) of the cantilever. The relation between the minimum detectable interaction force and the effective Q factor is derived from the equation of motion for the cantilever at low Q environment such as liquid environment. It indicates that the minimum detectable interaction force can be reduced in proportion to Qeff1/2 under strong Q enhancement, while it does not depend on the effective Q factor under weak Q enhancement. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ATOMIC force microscopy
*EQUATIONS
*MOTION
*CANTILEVERS
*LIQUIDS
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 103
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 31335184
- Full Text :
- https://doi.org/10.1063/1.2890380