Search Results - "Witte, B. B. L"
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Ultrafast multi-cycle terahertz measurements of the electrical conductivity in strongly excited solids
Published in Nature communications (12-03-2021)“…Key insights in materials at extreme temperatures and pressures can be gained by accurate measurements that determine the electrical conductivity…”
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2
Heterogeneous to homogeneous melting transition visualized with ultrafast electron diffraction
Published in Science (American Association for the Advancement of Science) (29-06-2018)“…The ultrafast laser excitation of matters leads to nonequilibrium states with complex solid-liquid phase-transition dynamics. We used electron diffraction at…”
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Warm Dense Matter Demonstrating Non-Drude Conductivity from Observations of Nonlinear Plasmon Damping
Published in Physical review letters (31-05-2017)“…We present simulations using finite-temperature density-functional-theory molecular dynamics to calculate the dynamic electrical conductivity in warm dense…”
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Carbon ionization at gigabar pressures: An ab initio perspective on astrophysical high-density plasmas
Published in Physical review research (01-06-2020)“…A realistic description of partially ionized matter in extreme thermodynamic states is critical to model the interior and evolution of the multiplicity of…”
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Observing the onset of pressure-driven K-shell delocalization
Published in Nature (London) (08-06-2023)“…The gravitational pressure in many astrophysical objects exceeds one gigabar (one billion atmospheres) 1 – 3 , creating extreme conditions where the distance…”
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Measurements of the momentum-dependence of plasmonic excitations in matter around 1 Mbar using an X-ray free electron laser
Published in Applied physics letters (07-01-2019)“…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…”
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An \textit{ab initio} study of shock-compressed copper
Published 28-07-2022“…Phys. Rev. B 106, 054304 (2022) We investigate shock-compressed copper in the warm dense matter regime by means of density functional theory molecular dynamics…”
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Carbon ionization at Gbar pressures: an ab initio perspective on astrophysical high-density plasmas
Published 28-04-2020“…Phys. Rev. Research 2, 023260 (2020) A realistic description of partially-ionized matter in extreme thermodynamic states is critical to model the interior and…”
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Warm Dense Matter Demonstrating Non-Drude Conductivity from Observations of Nonlinear Plasmon Damping
Published in Physical review letters (31-05-2017)Get full text
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10
Setup for meV-resolution inelastic X-ray scattering measurements at the Matter in Extreme Conditions Endstation at the LCLS
Published 05-06-2018“…We describe a setup for performing inelastic X-ray scattering measurements at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light…”
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