Journal Article

GSI-2021-00228

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Reflecting laser-driven shocks in diamond in the megabar pressure range

Jakubowska, K. (Corresponding author) ; Mancelli, D. ; Benocci, R. ; Trela, J. ; Errea, I. ; Martynenko, A. S. ; Neumayer, P.GSI* ; Rosmej, O.GSI* ; Borm, B. ; Molineri, A. ; Verona, C. ; Cannatà, D. ; Aliverdiev, A. ; Roman, H. E. ; Batani, D.

2021
Cambridge Univ. Press Cambridge

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Please use a persistent id in citations: doi:10.1017/hpl.2020.38  doi:10.15120/GSI-2021-00228

Abstract: In this work we present experimental results on the behavior of diamond at megabar pressure. The experiment was performed using the PHELIX facility at GSI in Germany to launch a planar shock into solid multi-layered diamond samples. The target design allows shock velocity in diamond and in two metal layers to be measured as well as the free surface velocity after shock breakout. As diagnostics, we used two velocity interferometry systems for any reflector (VISARs). Our measurements show that for the pressures obtained in diamond (between 3 and 9 Mbar), the propagation of the shock induces a reflecting state of the material. Finally, the experimental results are compared with hydrodynamical simulations in which we used different equations of state, showing compatibility with dedicated SESAME tables for diamond.

Note: "This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited."

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Contributing Institute(s):

1. Plasmaphysik / PHELIX (PPH)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)

Experiment(s):

1. P104: Non-metal/metal transition of compressed water and ammonia (POF3-6211; PTA)

Appears in the scientific report 2021

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