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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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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