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Title: Measurements of the momentum-dependence of plasmonic excitations in matter around 1 Mbar using an X-ray free electron laser

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.5070140· OSTI ID:1493342

We present measurements of the plasmon shift in shock-compressed matter as a function of momentum transfer beyond the Fermi wavevector using an X-ray Free Electron Laser. We eliminate the elastically scattered signal retaining only the inelastic plasmon signal. Our plasmon dispersion agrees with both the random phase approximation (RPA) and static Local Field Corrections (sLFC) for an electron gas at both zero and finite temperature. Further, we find the inclusion of electron-ion collisions through the Born-Mermin Approximation (BMA) to have no effect. Whilst we cannot distinguish between RPA and sLFC within our error bars, our data suggest that dynamic effects should be included for LFC and provide a route forward for higher resolution future measurements.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Grant/Contract Number:
AC02-76SF00515; 654220; SF00515; FWP100182
OSTI ID:
1493342
Journal Information:
Applied Physics Letters, Vol. 114, Issue 1; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

References (21)

MULTI — A computer code for one-dimensional multigroup radiation hydrodynamics journal June 1988
Dispersion and damping of volume plasmons in polycrystalline aluminium and indium journal October 1978
Electrical conductivity calculations in isochorically heated warm dense aluminum journal June 2017
Extremal properties of the Harris-Foulkes functional and an improved screening calculation for the electron gas journal October 1993
Interiors of Giant Planets Inside and Outside the Solar System journal October 1999
Thomson scattering from near-solid density plasmas using soft X-ray free electron lasers journal May 2007
Ultrabright X-ray laser scattering for dynamic warm dense matter physics journal March 2015
High pressure melting and equation of state of aluminium journal June 2000
Astrophysical Opacity journal January 1994
Characterization of strongly-bent HAPG crystals for von-Hámos x-ray spectrographs journal October 2013
Plasmon resonance in warm dense matter journal August 2008
Theoretical model of x-ray scattering as a dense matter probe journal February 2003
The LCLS variable-energy hard X-ray single-shot spectrometer journal January 2016
The Matter in Extreme Conditions instrument at the Linac Coherent Light Source journal April 2015
Theory of Plasma Oscillations. A. Origin of Medium-Like Behavior journal June 1949
Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas journal February 2010
The physics basis for ignition using indirect-drive targets on the National Ignition Facility journal February 2004
X-ray Thomson scattering in high energy density plasmas journal December 2009
X-Ray Thomson-Scattering Measurements of Density and Temperature in Shock-Compressed Beryllium journal March 2009
Indirect Bandgap and Optical Properties of Monoclinic Bismuth Vanadate journal January 2015
Theory of interparticle correlations in dense, high-temperature plasmas. II. Correlation functions journal September 1985

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