Young's Modulus of Two-Dimensional Ice from the Electrostatic Compression of Mercury/Water/Mercury Tunnel Junctions

Porter, J.D.; Zinn-Warner, Alexis S.

doi:10.1103/physrevlett.73.2879

Cited by 23 publications

(28 citation statements)

References 17 publications

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“…36 Experimental support for such a phenomenon comes from studies using a mercury/water/ mercury tunnel junction at Tϭ265 K, where it was found that the Young's modulus of two-dimensional ice shows a maximum value ͑of ϳ20% of bulk ice I h ) as H was increased from 0.50 to 0.80 nm. 51 Particles under confinement exhibit large oscillations in the density as a function of H that span transitions between consecutive number of layers. Since the ordinary ice, I h , is sensitive to density ͑e.g., melting can be observed upon increasing the density͒, the alternation of water and ice phases as a function of H in confined geometries can be understood in these terms.…”

Section: •10mentioning

confidence: 99%

Bilayer ice and alternate liquid phases of confined water

Zangi

Mark

2003

The Journal of Chemical Physics

136

146

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Articles you may be interested inElectrical charging effects on the sliding friction of a model nano-confined ionic liquid J. Chem. Phys. 143, 144703 (2015) We report results from molecular dynamics simulations of the freezing and melting, at ambient temperature (Tϭ300 K), of a bilayer of liquid water induced by either changing the distance between two confining parallel walls at constant lateral pressure or by lateral compression at constant plate separation. Both transitions are found to be first order. The system studied consisted of 1200 water molecules that were described by the TIP5P model. The in-plane symmetry of the oxygen atoms in the ice bilayer was found to be rhombic with a distorted in-registry arrangement. Above and below the stability region of the ice bilayer we observed two bilayer phases of liquid water that differ in the local ordering at the level of the second shell of nearest neighbors and in the density profile normal to the plane, yielding two liquid phases with different densities. These results suggest the intriguing possibility of a liquid-liquid transition of water, confined to a bilayer, at regions where the ice bilayer is unstable with respect to either of the liquid phases. In addition, we find that under the same conditions, water confined to 3-8 layers remains in the liquid phase ͑albeit stratification of the transverse density profile͒ with values of the lateral diffusion coefficient comparable to that of the bulk.

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Section: •10mentioning

confidence: 99%

Bilayer ice and alternate liquid phases of confined water

Zangi

Mark

2003

The Journal of Chemical Physics

136

146

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“…in a thin nanoscale layer. Both experiments [4,5] and computer simulations [6][7][8] of thin layers of water reveal the transitions between various liquid, amorphous and crystalline phases of water and ice not found in the bulk.…”

Section: Introductionmentioning

confidence: 96%

The friction properties of an ultrathin confined water film

2006

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An ultrathin water film confined between two substrates in moving contact is studied using Langevin molecular dynamics with coordinate-and velocity-dependent damping coefficient. The correlations between the structure of the water lubricant film and its frictional properties are found in a wide range of applied loads and for various strengths of interactions between water and surfaces. A self-organization of the film into a low-friction state under driving is observed to occur. Surprisingly, it is found that the ''hydrophilic'' surfaces exhibit a lower friction than the ''hydrophobic'' ones. The viscosity of the confined water estimated from the simulations is in a good agreement with the experimental value.

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“…When confined in nanopores the properties of water can be dramatically different from their bulk counterpart. For example, Porter and ZinnWarner [1] have reported that Young's modulus of solidwater thin films reaches its maximum value of ϳ20% of the bulk value as increasing film thickness from 0.5 to 0.8 nm, implying the possibility of confinement-driven order-disorder phase transition. However, the phase behavior of water confined in nanopores remains largely unexplored.…”

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“…We also confirmed that the solid phase that occurs under the lower loads (50 and 150 MPa) has the same crystalline structure. It appears that the structure of this bilayer ice crystal resembles none of the structures of existing ice polymorphs nor those of ices found in metallic or hydrophilic pores [1,[14][15][16][17]. The top view of the bilayer [ Fig.…”

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confidence: 99%