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pro vyhledávání: '"Proctor J"'
Autor:
Proctor, J. E., Robertson, C. E. A., Jones, L. J., Phillips, J., Watson, K., Dabburi, Y., Moss, B.
We have developed a new all-optical method to directly measure the pressure-volume-temperature (PVT) equation of state (EOS) of fluids and transparent solids in the diamond anvil high pressure cell by measuring the volume of the sample chamber. Our m
Externí odkaz:
http://arxiv.org/abs/2407.07935
Autor:
Proctor, J. E., Trachenko, K.
Physics-based first-principles pressure-volume-temperature equations of state (EOS) exist for solids and gases but not for liquids due to the long-standing fundamental problems involved in liquid theory. Current EOS models that are applicable to liqu
Externí odkaz:
http://arxiv.org/abs/2310.16821
We have studied in detail the transition from gas-like to rigid liquid-like behaviour in supercritical $N_2$ at 300 K (2.4 $T_C$). Our study combines neutron diffraction and Raman spectroscopy with empirical potential structure refinement and ab-init
Externí odkaz:
http://arxiv.org/abs/1909.12745
Autor:
Errandonea, D., MacLeod, S. G., Burakovsky, L., Santamaria-Perez, D., Proctor, J. E., Cynn, H., Mezouar, M.
Publikováno v:
Phys. Rev. B 100, 094111 (2019)
We report a combined experimental and theoretical study of the melting curve and the structural behavior of vanadium under extreme pressure and temperature. We performed powder x-ray diffraction experiments up to 120 GPa and 4000 K, determining the p
Externí odkaz:
http://arxiv.org/abs/1908.05166
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Autor:
Weekes, H. E., Dye, D., Proctor, J. E., Smith, D. S., Simionescu, C., Prior, T. J., Wenman, M. R.
The effect of pressure on the room temperature solubility of hydrogen in Zircaloy-4 was examined using synchrotron X-ray diffraction on small ground flake samples in a diamond anvil cell at pressures up to 20.9 GPa. Different combinations of hydrogen
Externí odkaz:
http://arxiv.org/abs/1806.09657
Autor:
Smith, D., Hakeem, M. A., Parisiades, P., Maynard-Casely, H. E., Foster, D., Eden, D., Bull, D. J., Marshall, A. R. L., Adawi, A. M., Howie, R., Sapelkin, A., Brazhkin, V. V., Proctor, J. E.
Publikováno v:
Phys. Rev. E 96, 052113 (2017)
We report experimental evidence for a crossover between a liquid-like state and a gas-like state in fluid methane (CH4). This crossover is observed in all of our experiments, up to 397 K temperature; 2.1 times the critical temperature of methane. The
Externí odkaz:
http://arxiv.org/abs/1710.04212
Autor:
Proctor, J. E., Pruteanu, C. G., Moss, B., Kuzovnikov, M. A., Ackland, G. J., Monk, C. W., Anzellini, S.
Publikováno v:
Journal of Applied Physics; 9/21/2023, Vol. 134 Issue 11, p1-11, 11p
Autor:
Gleissner, J., Errandonea, D., Segura, A., Pellicer-Porres, J., Hakeem, M. A., Proctor, J., Raju, S. V., Kumar, R. S., Rodriguez-Hernandez, P., Munoz, A., Lopez-Moreno, S., Bettinelli, M.
Publikováno v:
Phys. Rev. B 94, 134108 (2016)
We report a high-pressure study of monoclinic monazite-type SrCrO4 up to 26 GPa. Therein we combined x-ray diffraction, Raman and optical-absorption measurements with ab initio calculations, to find a pressure-induced structural phase transition of S
Externí odkaz:
http://arxiv.org/abs/1610.06738
Autor:
Brazhkin, V. V., Proctor, J. E.
In a recent publication (D. Bolmatov et al. Sci.Rep. 5, 15850 (2015)) the experimental observation of structural transformations on crossing the Frenkel line in supercritical argon is claimed. Here we show that no experimental evidence of the structu
Externí odkaz:
http://arxiv.org/abs/1608.06883