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    Mechanism of atomic force microscopy imaging of three-dimensional hydration structures at a solid-liquid interface

    234916_234916.pdf (1.895Mb)
    Access Status
    Open access
    Authors
    Fukuma, T.
    Reischl, Bernhard
    Kobayashi, N.
    Spijker, P.
    Canova, F.
    Miyazawa, K.
    Foster, A.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Fukuma, T. and Reischl, B. and Kobayashi, N. and Spijker, P. and Canova, F. and Miyazawa, K. and Foster, A. 2015. Mechanism of atomic force microscopy imaging of three-dimensional hydration structures at a solid-liquid interface. Physical Review B - Condensed Matter and Materials Physics. 92: 155412.
    Source Title
    Physical Review B - Condensed Matter and Materials Physics
    DOI
    10.1103/PhysRevB.92.155412
    ISSN
    1098-0121
    School
    Nanochemistry Research Institute
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP140101776
    Remarks

    This open access article is distributed under the Creative Commons license http://creativecommons.org/licenses/by/3.0/

    URI
    http://hdl.handle.net/20.500.11937/4921
    Collection
    • Curtin Research Publications
    Abstract

    Here we present both subnanometer imaging of three-dimensional (3D) hydration structures using atomic force microscopy (AFM) and molecular dynamics simulations of the calcite-water interface. In AFM, by scanning the 3D interfacial space in pure water and recording the force on the tip, a 3D force image can be produced, which can then be directly compared to the simulated 3D water density and forces on a model tip. Analyzing in depth the resemblance between experiment and simulation as a function of the tip-sample distance allowed us to clarify the contrast mechanism in the force images and the reason for their agreement with water density distributions. This work aims to form the theoretical basis for AFM imaging of hydration structures and enables its application to future studies on important interfacial processes at the molecular scale.

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