Indirect evidence for elemental hydrogen in laser-compressed hydrocarbons
D. Kraus, Jan Vorberger, N. J. Hartley, J. Lütgert, Melanie Rödel, Deniza Chekrygina, T. Döppner, Tim van Driel, R. W. Falcone, L. B. Fletcher, S. Frydrych, Eric Galtier, D. O. Gericke, S. H. Glenzer, E. Granados, Yuichi Inubushi, N. Kamimura, Kento Katagiri, M. J. MacDonald, A. J. Mackinnon, T. Matsuoka, Kohei Miyanishi, E. E. McBride, Inhyuk Nam, P. Neumayer, Norimasa Ozaki, A. Pak, A. Ravasio, Alison M Saunders, A. K. Schuster, M.G. Stevenson, Keiichi Sueda, Peihao Sun, Tadashi Togashi, K. Voigt, Makina Yabashi, T. Yabuuchi
Abstract
$I\phantom{\rule{0}{0ex}}n$ $s\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}t\phantom{\rule{0}{0ex}}u$ x-ray diffraction of shock-compressed plastics suggests the formation of liquid metallic hydrogen via carbon-hydrogen phase separation.