No evidence for large-scale proton ordering in Antarctic ice from powder neutron diffraction.

We have examined a sample of 4000 year old Antarctic ice, collected at theKohnen Station, by time-of-flight powder neutron diffraction to test the hypothesis ofFukazawa et al. [e.g., Ann. Glaciol. 31, 247 (2000)] that such ice may be partiallyproton ordered. Great care was taken to keep our sample b...

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Bibliographic Details
Published in:The Journal of Chemical Physics
Main Authors: Fortes, A. D., Wood, I. G., Grigoriev, D., Alfredsson, M., Kipfstuhl, Sepp
Format: Article in Journal/Newspaper
Language:unknown
Published: 2004
Subjects:
Antarctic
Antarc*
Online Access:https://epic.awi.de/id/eprint/10477/
https://doi.org/10.1063/1.1765099
https://hdl.handle.net/10013/epic.20954
Description
Summary:We have examined a sample of 4000 year old Antarctic ice, collected at theKohnen Station, by time-of-flight powder neutron diffraction to test the hypothesis ofFukazawa et al. [e.g., Ann. Glaciol. 31, 247 (2000)] that such ice may be partiallyproton ordered. Great care was taken to keep our sample below the proposed orderingtemperature (237 K) at all times, but we did not observe any evidence of protonordering.

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