UDC 539.2:681.2

Vo Thanh Tung,a,b S. A. Chizhik,a and Tran 
Xuan Hoaib

STUDY OF THE PARAMETERS OF TIP-SAMPLE INTERACTIONS 
IN SHEAR MODE USING A QUARTZ TUNING FORK AFM WITH CONTROLLABLE Q-FACTOR

A quartz tuning fork-based atomic force microscopy for 
investigating the tip<197>sample interactions at the nanoscale in 
the shear-force mode is described. Results of force interactions (damping 
and elastic forces) can be obtained from the amplitude-phase-distance 
spectroscopy measurements made with a tuning fork with a tungsten 
tip and a sample surface. The influence of the interaction between 
tip and sample using the quality factor as an indicator is investigated. 
Furthermore, a simple model shows that the extension of a tuning fork-based 
AFM can be applied to quantitative analysis of the properties of the 
sample surface.

aA.V.Luikov Heat and Mass Transfer Institute, National 
Academy of Sciences of Belarus, P. Brovka Str. 15, Minsk, 220072, 
Belarus; email: votungbeo@gmail.com; bInstitute of Applied 
Physics and Scientific Instrument of Vietnamese Academy of Science 
and Technology, Vietnam. Original article submitted June 25, 2008