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Hashemi, S. Rasoul; McCoustra, Martin R. S.; Fraser, Helen J. and Nyman, Gunnar
(2022).
DOI: https://doi.org/10.1039/d2cp00360k
Abstract
Spontaneous dipole orientation is studied for a set of simulated porous ASW ice films on a substrate held at temperatures ranging from 10 K to 140 K. It is found that the water dipoles in the films obtained at the lower temperatures are oriented such that a negative electric field with a magnitude of 108–109 V m−1 is obtained. The magnitude of the field increases approximately linearly with height above the substrate, akin to experimental observations, although the magnitude of our field increases faster. A strong temperature dependence of the surface potential resulting from the spontelectric field is found, where the surface potential decreases when the substrate temperature increases. The surface potential finally becomes close to zero for temperatures around and above 110 K.
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- Item ORO ID
- 83437
- Item Type
- Journal Item
- ISSN
- 1463-9084
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Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
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