Investigation of the temperature in dense carbon near the solid-liquid phase transition between 100 GPa and 200 GPa with spectrally resolved X-ray scattering
作者： J. Helfrich , J. Vorberger , S. Frydrych , G. Schaumann , A. Ravasio
DOI: 10.1016/J.HEDP.2019.05.001
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摘要: Abstract We present experiments investigating dense carbon at pressures between 100 GPa and 200 GPa temperatures 5,000 K 15,000 K. High-pressure samples with different were created by laser-driven shock compression of graphite varying the initial density from 1.53 g/cm3 to 2.21 g/cm3 drive laser intensity 7.1 TW/cm2 14.2 TW/cm2. In order deduce temperatures, spectrally resolved X-ray scattering was applied determine ion-ion structure factors a vector k = 4.12 · 10 m − 1 , which shows high sensitivity temperature for investigated sample conditions. After comparison corresponding DFT-MD simulations, we able assign each factor temperature. This information is indicative expected range melting line can be compared theoretical predictions.
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sci-hub.se 参考文章(47)
D. Kraus, J. Vorberger, J. Helfrich, D. O. Gericke, B. Bachmann, V. Bagnoud, B. Barbrel, A. Blažević, D. C. Carroll, W. Cayzac, T. Döppner, L. B. Fletcher, A. Frank, S. Frydrych, E. J. Gamboa, M. Gauthier, S. Göde, E. Granados, G. Gregori, N. J. Hartley, B. Kettle, H. J. Lee, B. Nagler, P. Neumayer, M. M. Notley, A. Ortner, A. Otten, A. Ravasio, D. Riley, F. Roth, G. Schaumann, D. Schumacher, W. Schumaker, K. Siegenthaler, C. Spindloe, F. Wagner, K. Wünsch, S. H. Glenzer, M. Roth, R. W. Falcone, The complex ion structure of warm dense carbon measured by spectrally resolved x-ray scatteringa) Physics of Plasmas. ,vol. 22, pp. 056307- ,(2015) , 10.1063/1.4920943
D. Kraus, J. Vorberger, D. O. Gericke, V. Bagnoud, A. Blažević, W. Cayzac, A. Frank, G. Gregori, A. Ortner, A. Otten, F. Roth, G. Schaumann, D. Schumacher, K. Siegenthaler, F. Wagner, K. Wünsch, M. Roth, Probing the complex ion structure in liquid carbon at 100 GPa. Physical Review Letters. ,vol. 111, pp. 255501- 255501 ,(2013) , 10.1103/PHYSREVLETT.111.255501
J Chihara, Difference in X-ray scattering between metallic and non-metallic liquids due to conduction electrons Journal of Physics F: Metal Physics. ,vol. 17, pp. 295- 304 ,(1987) , 10.1088/0305-4608/17/2/002
P. E. Blöchl, Projector augmented-wave method Physical Review B. ,vol. 50, pp. 17953- 17979 ,(1994) , 10.1103/PHYSREVB.50.17953
P. Eisenberger, P. M. Platzman, Compton Scattering of X Rays from Bound Electrons Physical Review A. ,vol. 2, pp. 415- 423 ,(1970) , 10.1103/PHYSREVA.2.415
A. J. MacKinnon, N. B. Meezan, J. S. Ross, S. Le Pape, L. Berzak Hopkins, L. Divol, D. Ho, J. Milovich, A. Pak, J. Ralph, T. Döppner, P. K. Patel, C. Thomas, R. Tommasini, S. Haan, A. G. MacPhee, J. McNaney, J. Caggiano, R. Hatarik, R. Bionta, T. Ma, B. Spears, J. R. Rygg, L. R. Benedetti, R. P. J. Town, D. K. Bradley, E. L. Dewald, D. Fittinghoff, O. S. Jones, H. R. Robey, J. D. Moody, S. Khan, D. A. Callahan, A. Hamza, J. Biener, P. M. Celliers, D. G. Braun, D. J. Erskine, S. T. Prisbrey, R. J. Wallace, B. Kozioziemski, R. Dylla-Spears, J. Sater, G. Collins, E. Storm, W. Hsing, O. Landen, J. L. Atherton, J. D. Lindl, M. J. Edwards, J. A. Frenje, M. Gatu-Johnson, C. K. Li, R. Petrasso, H. Rinderknecht, M. Rosenberg, F. H. Séguin, A. Zylstra, J. P. Knauer, G. Grim, N. Guler, F. Merrill, R. Olson, G. A. Kyrala, J. D. Kilkenny, A. Nikroo, K. Moreno, D. E. Hoover, C. Wild, E. Werner, High-density carbon ablator experiments on the National Ignition Facilitya) Physics of Plasmas. ,vol. 21, pp. 056318- ,(2014) , 10.1063/1.4876611
G. Kresse, D. Joubert, From ultrasoft pseudopotentials to the projector augmented-wave method Physical Review B. ,vol. 59, pp. 1758- 1775 ,(1999) , 10.1103/PHYSREVB.59.1758
John P. Perdew, Kieron Burke, Matthias Ernzerhof, Generalized Gradient Approximation Made Simple Physical Review Letters. ,vol. 77, pp. 3865- 3868 ,(1996) , 10.1103/PHYSREVLETT.77.3865
William G. Hoover, Canonical dynamics: Equilibrium phase-space distributions Physical Review A. ,vol. 31, pp. 1695- 1697 ,(1985) , 10.1103/PHYSREVA.31.1695
G. Gregori, S. H. Glenzer, W. Rozmus, R. W. Lee, O. L. Landen, Theoretical model of x-ray scattering as a dense matter probe. Physical Review E. ,vol. 67, pp. 026412- ,(2003) , 10.1103/PHYSREVE.67.026412