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The premelting of ice studied with photoelectron spectroscopy
Abstract
We address the century-old puzzle of the existence of a liquid-like layer at the ice surface near its melting point with new photoelectron spectroscopic tools using synchrotron radiation. Near-edge x-ray absorption shows that a liquid-like film exists at temperatures as low as -20 °C. Near 0 °C this film is about 20 Å thick, i.e., six bilayers. With high-pressure x-ray photoelectron spectroscopy, we have further investigated the effect of surface contamination, which is ubiquitous in natural environments, on the state of the ice. Our results show that the premelting of ice can be strongly enhanced by the presence of hydrocarbon contamination.
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Citations
Cited by
Molecular Structure of Water at Interfaces: Wetting at the Nanometer Scale
Verdaguer, A., Sacha, G. M., Bluhm, H., & Salmeron, M. (2006) · Chemical Reviews · doi:10.1021/cr040376l · Cited by 627
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Metadata
- Authors
- Bluhm, H., Ogletree, D. F., Fadley, C. S., Hussain, Z., & Salmeron, M.
- Venue
- Journal of Physics: Condensed Matter
- Publisher
- IOP Publishing
- Published
- 2002-02-15
- Volume
- 14
- Issue
- 8
- Pages
- L227-L233
- ISSN
- 0953-8984 (ISSN-L)
- 1361-648X
- OpenAlex
- W2070438487
- Cited by
- 217
- References
- 0
- FWCI
- 7.89
- Type
- journal article
- Language
- en
- Open access
- closed
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- Bluhm, H., Ogletree, D. F., Fadley, C. S., Hussain, Z., & Salmeron, M. (2002). The premelting of ice studied with photoelectron spectroscopy. Journal of Physics: Condensed Matter. https://doi.org/10.1088/0953-8984/14/8/108
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