Cited by 37Force Microscopy Techniques and ApplicationsElectrostatics and Colloid InteractionsSpectroscopy and Quantum Chemical Studies

Atomic-Level Viscosity Distribution in the Hydration Layer

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Umeda, Kenichi, Kobayashi, Kei, Minato, Taketoshi, Yamada, Hirofumi·2019·Physical Review Letters

Abstract

The viscosity of solvation structures is crucial for the development of energy-efficient biofunctional and electrochemical devices. Elucidating their subnanoscale distributions can cause the formation of a sustainable energy society. Here, we visualize the site-specific three-dimensional damping distribution on a CaCO_{3} surface composed of binary ion species using ultra-low-noise frequency modulation atomic force microscopy. With the support from molecular dynamics simulation, we found a strikingly large damping at the calcium sites, which demonstrates the capability of this methodology to visualize atomic-scale viscosity in the hydration layers. Our finding will expedite the evolutions of various functional devices.

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Crossref · 10.1103/physrevlett.122.116001

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Research works printed but not linked: 2

  1. [22]22. P. Rahe, J. Schütte, and A. Kühnle, NC-AFM contrast formation on the calcite (10 14) surface, J. Phys. Condens. Matter 24, 084006 (2012).
  2. [28]28. See Supplemental Material at http://link.aps.org/ supplemental/10.1103/PhysRevLett.122.116001 for addi- tional experimental and theoretical data, i.e., snapshots from the MD simulation, averaged experimental and simu- lated profile, correlation between frequency shift and damp- ing, 3D force map data on mica, and movie for 3D force and damping map measurement on calcite.

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Authors
Umeda, K., Kobayashi, K., Minato, T., & Yamada, H.
Affiliations
  • Kanazawa University (JP)
  • Kyoto University (JP)
Venue
Physical Review Letters
Published
2019-03-21
Volume
122
Issue
11
Pages
116001-116001
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2922943116
Cited by
37
References
32
Citations by year
2026: 3 · 2025: 4 · 2024: 7 · 2023: 3 · 2022: 9 · 2021: 5 · 2020: 4 · 2019: 2
FWCI
2.31
Type
journal article
Language
en
Open access
Locations
  • Physical Review Letters (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion)
  • Kyoto University Research Information Repository (Kyoto University) (submittedVersion)
Funders
  • Japan Society for the Promotion of Science (24221008, 25286057, 15K17467, 16J01165)
  • Murata Science Foundation
  • Foundation Advanced Technology Institute
  • Nanotech Career-up Alliance
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Force Microscopy Techniques and Applications
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Electrostatics and Colloid Interactions
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Spectroscopy and Quantum Chemical Studies
Keywords
hydration shell, solvation structure, frequency modulation atomic force microscopy, calcium binding sites, molecular dynamics simulation

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