Imperial College London
Alternate

ProfessorSimonBland

Faculty of Natural Sciences, Department of Physics

Professor of Plasma Physics
 
 
 
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Contact

 

+44 (0)20 7594 7650sn.bland

 
 
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Location

 

746Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Torchio:2016:10.1038/srep26402,
author = {Torchio, R and Occelli, F and Mathon, O and Sollier, A and Lescoute, E and Videau, L and Vinci, T and Benuzzi-Mounaix, A and Headspith, J and Helsby, W and Bland, S and Eakins, D and Chapman, D and Pascarelli, S and Loubeyre, P},
doi = {10.1038/srep26402},
journal = {Scientific Reports},
title = {Probing local and electronic structure in Warm Dense Matter: single pulse synchrotron x-ray absorption spectroscopy on shocked Fe},
url = {http://dx.doi.org/10.1038/srep26402},
volume = {6},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Understanding Warm Dense Matter (WDM), the state of planetary interiors, is a new frontier in scienti c research. There exists very little experimental data probing WDM states at the atomic level to test current models and those performed up to now are limited in quality. Here, we report a proof-of- principle experiment that makes microscopic investigations of materials under dynamic compression easily accessible to users and with data quality close to that achievable at ambient. Using a single100 ps synchrotron x-ray pulse, we have measured, by K-edge absorption spectroscopy, ns-lived equilibrium states of WDM Fe. Structural and electronic changes in Fe are clearly observed for the  rst time at such extreme conditions. The amplitude of the EXAFS oscillations persists up to 500 GPa and 17000 K, suggesting an enduring local order. Moreover, a discrepancy exists with respect to theoretical calculations in the value of the energy shift of the absorption onset and so this comparison should help to re ne the approximations used in models.
AU  - Torchio,R
AU  - Occelli,F
AU  - Mathon,O
AU  - Sollier,A
AU  - Lescoute,E
AU  - Videau,L
AU  - Vinci,T
AU  - Benuzzi-Mounaix,A
AU  - Headspith,J
AU  - Helsby,W
AU  - Bland,S
AU  - Eakins,D
AU  - Chapman,D
AU  - Pascarelli,S
AU  - Loubeyre,P
DO  - 10.1038/srep26402
PY  - 2016///
SN  - 2045-2322
TI  - Probing local and electronic structure in Warm Dense Matter: single pulse synchrotron x-ray absorption spectroscopy on shocked Fe
T2  - Scientific Reports
UR  - http://dx.doi.org/10.1038/srep26402
UR  - http://hdl.handle.net/10044/1/32531
VL  - 6
ER  -
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