Libbrecht, Kenneth G. (2015) The Surface Diffusion Length of Water Molecules on Faceted Ice: A Reanalysis of “Roles of Surface/Volume Diffusion in the Growth Kinetics of Elementary Spiral Steps on Ice Basal Faces Grown from Water Vapor, by Asakawa et al. . (Submitted) https://resolver.caltech.edu/CaltechAUTHORS:20160201-152804474
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Abstract
We reanalyzed the measurements made by Asakawa et al. [1] of the growth velocities of single-molecule-high steps on basal ice surfaces, as we believe the authors made a number of incorrect assumptions regarding ice growth parameters and bulk diffusion in their experiments. Applying what we believe are more accurate assumptions, we used the data in [1] to derive a surface diffusion length of x_s ≈ 10 nm for water molecules on basal ice surfaces at T = −8.4 C, about 500 times lower than what was reported in [1]. Moreover, in our analysis we found that no information about the height of the Ehrlich-Schwoebel barrier could be obtained from these measurements.
Item Type: | Report or Paper (Discussion Paper) | ||||||
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Additional Information: | Submitted on 22 Sep 2015. | ||||||
Record Number: | CaltechAUTHORS:20160201-152804474 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20160201-152804474 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 64141 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | INVALID USER | ||||||
Deposited On: | 03 Feb 2016 00:28 | ||||||
Last Modified: | 03 Oct 2019 09:35 |
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