Articles | Volume 18, issue 20
Atmos. Chem. Phys., 18, 14965–14978, 2018
https://doi.org/10.5194/acp-18-14965-2018
Atmos. Chem. Phys., 18, 14965–14978, 2018
https://doi.org/10.5194/acp-18-14965-2018

Research article 18 Oct 2018

Research article | 18 Oct 2018

The quasi-liquid layer of ice revisited: the role of temperature gradients and tip chemistry in AFM studies

Julián Gelman Constantin et al.

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Cited articles

Anderson, P. S. and Neff, W. D.: Boundary layer physics over snow and ice, Atmos. Chem. Phys., 8, 3563–3582, https://doi.org/10.5194/acp-8-3563-2008, 2008. 
Attard, P.: Measurement and interpretation of elastic and viscoelastic properties with the atomic force microscope, J. Phys.: Condens. Matter, 19, 473201, https://doi.org/10.1088/0953-8984/19/47/473201, 2007. 
Beaglehole, D. and Nason, D.: Transition layer on the surface on ice, Surf. Sci., 96, 357–363, 1980. 
Bird, R. B., Stewart, W. E., and Lightfoot, E. N: Transport Phenomena, John Wiley & Sons, Revised 2nd edition, 2007.  
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Short summary
Numerous studies have shown that ice surface is actually coated by a thin layer of water even for temperatures below melting temperature. This quasi-liquid layer is relevant in the atmospheric chemistry of clouds, polar regions, glaciers, and other cold regions. We present new results of atomic force microscopy on pure ice, which suggests a thickness for this layer below 1 nm between -7 ºC and -2 ºC. We propose that in many cases previous authors have overestimated this thickness.
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