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Near-field deformation of a liquid interface by atomic force microscopy

Mortagne, Caroline and Incerti, Véronique and Ledesma Alonso, René and Ogier, Maëlle and Risso, Frédéric and Ondarçuhu, Thierry and Legendre, Dominique and Tordjeman, Philippe Near-field deformation of a liquid interface by atomic force microscopy. (2017) Physical Review E, 96 (1). 012802/1-012802/7. ISSN 1539-3755

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Official URL: http://dx.doi.org/10.1103/PhysRevE.96.012802

Abstract

We experiment the interaction between a liquid puddle and a spherical probe by Atomic Force Microscopy (AFM) for a probe radius R ranging from 10 nm to 30 μm. We have developed a new experimental setup by coupling an AFM with a high-speed camera and an inverted optical microscope. Interaction force-distance curves (in contact mode) and frequency shift–distance curves (in frequency modulation mode) are measured for different bulk model liquids for which the probe-liquid Hamaker constant Hpl is known. The experimental results, analyzed in the frame of the theoretical model developed in Phys. Rev. Lett. 108, 106104 (2012) and Phys. Rev. E 85, 061602 (2012), allow to determine the “jump-to-contact” critical distance dmin below which the liquid jumps and wets the probe. Comparison between theory and experiments shows that the probe-liquid interaction at nanoscale is controlled by the liquid interface deformation. This work shows a very good agreement between the theoretical model and the experiments and paves the way to experimental studies of liquids at the nanoscale.

Item Type:Article
Additional Information:Thanks to American Physical Society editor. The definitive version is available at https://journals.aps.org/ The original PDF of the article can be found at https://journals.aps.org/pre/abstract/10.1103/PhysRevE.96.012802
HAL Id:hal-01597280
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Universidad de Quintana Roo - UQROO (MEXICO)
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Funders:
ANR
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Deposited By: Frederic RISSO
Deposited On:28 Sep 2017 09:36

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