Time resolved lateral dynamic force microscopy for exploring nanoscopic water bridge

ORAL

Abstract

Lateral dynamic force microscopy based on time-resolved scheme is employed for a good understanding of dynamics of nanoscopic water bridge connecting a sharp tip with a flat sample. In its formation and stepped compression at which the tip and the sample in a true non-contact, the nanoscopic water bridge under oscillatory shear stress shows a transient response behavior for a long time ($ \ge 10^{2} $ ms). This observation obviously demonstrates that an inadequate fast measurement in dynamic force microscopy can lead a misunderstanding of dynamic physical properties of the nanoscopic water.

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Authors

  • Jongwoo Kim

    • Center for nano-liquid, School of Physics and Astronomy, Seoul National University Team

  • Sungjin Chang

    • Center for nano-liquid and Center for THz-Bio Application Systems, School of Physics, Seoul National University Team

  • Baekman Sung

    • Center for nano-liquid, School of Physics and Astronomy, Seoul National University Team

  • Soyoung Kwon

    • Center for nano-liquid, School of Physics and Astronomy, Seoul National University Team

  • Gun-Sik Park

    • Center for THz-Bio Application Systems, School of Physics and Astronomy, Seoul National University Team

  • Wonho Jhe

    • Center for nano-liquid, School of Physics and Astronomy, Seoul National University Team