Atomic-Scale Distribution of Water Molecules at the Mica-Water Interface Visualized by Three-Dimensional Scanning Force Microscopy

Takeshi Fukuma, Yasumasa Ueda, Shunsuke Yoshioka, and Hitoshi Asakawa
Phys. Rev. Lett. 104, 016101 – Published 6 January 2010
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Abstract

We have developed a method referred to as three-dimensional scanning force microscopy (3D-SFM) which enables us to visualize water distribution at a solid-liquid interface with an atomic-scale resolution in less than 1 min. The 3D-SFM image obtained at a mica-water interface visualizes 3D distributions of adsorbed water molecules above the center of hexagonal cavities and the laterally distributed hydration layer. The atomically resolved 3D-SFM image showing mirror symmetry suggests the existence of surface relaxation of the cleaved mica surface next to the aqueous environment.

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  • Received 3 November 2009

DOI:https://doi.org/10.1103/PhysRevLett.104.016101

©2010 American Physical Society

Authors & Affiliations

Takeshi Fukuma1,2,3,*, Yasumasa Ueda3, Shunsuke Yoshioka3, and Hitoshi Asakawa1

  • 1Frontier Science Organization, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
  • 2PRESTO, Japan Science and Technology Agency, Honcho 4-1-9, Kawaguchi 332-0012, Japan
  • 3Department of Electrical and Electronic Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan

  • *fukuma@staff.kanazawa-u.ac.jp

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Issue

Vol. 104, Iss. 1 — 8 January 2010

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