Crystalline structure and squeeze-out dissipation of liquid solvation layers observed by small-amplitude dynamic AFM.
PHYS REV B
, Article 134104. 10.1103/PhysRevB.80.134104.
Using frequency-modulation atomic force microscopy (FM-AFM) at sub-nanometer vibration amplitudes, we find in the system n-dodecanol/graphite that solvation layers may extend for several nanometers into the bulk liquid. These layers maintain crystalline order which can be imaged using FM-AFM. The energy dissipation of the vibrating tip can peak sharply upon penetration of molecular layers. The tip shape appears critical for this effect.
|Title:||Crystalline structure and squeeze-out dissipation of liquid solvation layers observed by small-amplitude dynamic AFM|
|Keywords:||ATOMIC-FORCE MICROSCOPY, INTERFACES, GRAPHITE, TRANSITION|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry|
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