Atomic force microscopy cantilever dynamics in liquid in the presence of tip sample interaction

2008 ◽  
Vol 93 (25) ◽  
pp. 253106 ◽  
Author(s):  
Sissi de Beer ◽  
Dirk van den Ende ◽  
Frieder Mugele
2016 ◽  
Vol 109 (4) ◽  
pp. 043111 ◽  
Author(s):  
R. Wagner ◽  
T. J. Woehl ◽  
R. R. Keller ◽  
J. P. Killgore

2012 ◽  
Vol 3 ◽  
pp. 260-266
Author(s):  
Masami Kageshima

The frequency-resolved viscoelasticity of a hydration layer on a mica surface was studied by pulse-response measurement of a magnetically driven atomic force microscopy cantilever. Resonant ringing of the cantilever due to its 1st and 2nd resonance modes was suppressed by means of the Q-control technique. The Fourier–Laplace transform of the deflection signal of the cantilever gave the frequency-resolved complex compliance of the cantilever–sample system. The significant viscoelasticity spectrum of the hydration layer was successfully derived in a frequency range below 100 kHz by comparison of data obtained at a distance of 300 nm from the substrate with those taken in the proximity of the substrate. A positive value of the real part of the stiffness was determined and is attributed to the reported solidification of the hydration layers.


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