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Formation, Manipulation, and Elasticity Measurement of a Nanometric Column of Water Molecules | | H. Choe
; M.-H. Hong
; Y. Seo
; K. Lee
; G. Kim
; Y. Cho
; J. Ihm
; W. Jhe
; | | Date: |
21 Mar 2005 | | Subject: | Fluid Dynamics; General Physics | physics.flu-dyn physics.gen-ph | | Affiliation: | 1 and 2), M.-H. Hong (1 and 2), Y. Seo , K. Lee , G. Kim , Y. Cho , J. Ihm and W. Jhe (1 and 2) ( School of Physics, Center for Near-field Atom-photon Technology, Seoul National University | | Abstract: | Nanometer-sized columns of condensed water molecules are created by an atomic-resolution force microscope operated in ambient conditions. Unusual stepwise decrease of the force gradient associated with the thin water bridge in the tip-substrate gap is observed during its stretch, exhibiting regularity in step heights (~0.5 N/m) and plateau lengths (~1 nm). Such "quantized" elasticity is indicative of the atomic-scale stick-slip at the tip-water interface. A thermodynamic-instability-induced rupture of the water meniscus (5-nm long and 2.6-nm wide) is also found. This work opens a high-resolution study of the structure and the interface dynamics of a nanometric aqueous column. | | Source: | arXiv, physics/0503165 | | Other source: | [GID 619227] pmid16383951 | | Services: | Forum | Review | PDF | Favorites | |
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