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Evidence for a glassy state in strongly driven carbon

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Author(s)
Brown, C. R. D.Gericke, D. O.Cammarata, M.CHO, B. I.Doeppner, T.Engelhorn, K.Foerster, E.Fortmann, C.Fritz, D.Galtier, E.Glenzer, S. H.Harmand, M.Heimann, P.Kugland, N. L.Lamb, D. Q.Lee, H. J.Lee, R. W.Lemke, H.Makita, M.Moinard, A.Murphy, C. D.Nagler, B.Neumayer, P.Plagemann, K. -U.Redmer, R.Riley, D.Rosmej, F. B.Sperling, P.Toleikis, S.Vinko, S. M.Vorberger, J.White, S.White, T. G.Wuensch, K.Zastrau, U.Zhu, D.Tschentscher, T.Gregori, G.
Type
Article
Citation
Scientific Reports, v.4
Issued Date
2014-06
Abstract
Here, we report results of an experiment creating a transient, highly correlated carbon state using a combination of optical and x-ray lasers. Scattered x-rays reveal a highly ordered state with an electrostatic energy significantly exceeding the thermal energy of the ions. Strong Coulomb forces are predicted to induce nucleation into a crystalline ion structure within a few picoseconds. However, we observe no evidence of such phase transition after several tens of picoseconds but strong indications for an over-correlated fluid state. The experiment suggests a much slower nucleation and points to an intermediate glassy state where the ions are frozen close to their original positions in the fluid.
Publisher
NATURE PUBLISHING GROUP
ISSN
2045-2322
DOI
10.1038/srep05214
URI
https://scholar.gist.ac.kr/handle/local/15122
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