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Observation of finite-wavelength screening in high-energy-density matter
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Chapman, D. A., Vorberger, J., Fletcher, L. B., Baggott, Rory, Divol, L., Döppner, T., Falcone, R. W., Glenzer, S. H., Gregori, G., Guymer, T. M., Kritcher, A. L., Landen, O. L., Ma, T., Pak, A. E. and Gericke, Dirk O. (2015) Observation of finite-wavelength screening in high-energy-density matter. Nature Communications, 6 (1). doi:10.1038/ncomms7839 ISSN 2041-1723.
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Official URL: http://dx.doi.org/10.1038/ncomms7839
Abstract
A key component for the description of charged particle systems is the screening of the Coulomb interaction between charge carriers. First investigated in the 1920s by Debye and Hückel for electrolytes, charge screening is important for determining the structural and transport properties of matter as diverse as astrophysical and laboratory plasmas, nuclear matter such as quark-gluon plasmas, electrons in solids, planetary cores and charged macromolecules. For systems with negligible dynamics, screening is still mostly described using a Debye–Hückel-type approach. Here, we report the novel observation of a significant departure from the Debye–Hückel-type model in high-energy-density matter by probing laser-driven, shock-compressed plastic with high-energy X-rays. We use spectrally resolved X-ray scattering in a geometry that enables direct investigation of the screening cloud, and demonstrate that the observed elastic scattering amplitude is only well described within a more general approach.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QC Physics | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
| Library of Congress Subject Headings (LCSH): | Wavelengths, High pressure physics, Matter -- Properties, Coulomb functions | ||||||||
| Journal or Publication Title: | Nature Communications | ||||||||
| Publisher: | Nature Publishing Group | ||||||||
| ISSN: | 2041-1723 | ||||||||
| Official Date: | 23 April 2015 | ||||||||
| Dates: |
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| Volume: | 6 | ||||||||
| Number: | 1 | ||||||||
| DOI: | 10.1038/ncomms7839 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||
| Date of first compliant deposit: | 29 July 2019 | ||||||||
| Date of first compliant Open Access: | 29 July 2019 | ||||||||
| RIOXX Funder/Project Grant: |
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