Zobrazeno 1 - 10
of 364
pro vyhledávání: '"Gregoryanz, Eugene"'
Autor:
Wang, Jun-Feng, Liu, Lin, Liu, Xiao-Di, Li, Qiang, Cui, Jin-Ming, Zhou, Di-Fan, Zhou, Ji-Yang, Wei, Yu, Xu, Hai-An, Xu, Wan, Lin, Wu-Xi, Yan, Jin-Wei, He, Zhen-Xuan, Liu, Zheng-Hao, Hao, Zhi-He, Li, Hai-Ou, Liu, Wen, Xu, Jin-Shi, Gregoryanz, Eugene, Li, Chuan-Feng, Guo, Guang-Can
Pressure-induced magnetic phase transition is attracting interest due to its ability to detect superconducting behaviour at high pressures in diamond anvil cells. However, detection of the local sample magnetic properties is a great challenge due to
Externí odkaz:
http://arxiv.org/abs/2208.13171
Autor:
Yan, Jinwey, Tóth, Ondrej, Xu, Wan, Liu, Xiao-Di, Gregoryanz, Eugene, Dalladay-Simpson, Philip, Qi, Zeming, Xie, Shiyu, Gorelli, Federico, Martoňák, Roman, Santoro, Mario
Carbon disulfide, CS$_2$, is an archetypal double-bonded molecular system belonging to the rich class of group IV-group VI, AB$_2$ compounds. It is widely and since long time believed that upon compression at several GPa a polymeric chain of type (-(
Externí odkaz:
http://arxiv.org/abs/2104.03610
Autor:
Cooke, Peter I. C., Magdǎu, Ioan B., Peña-Alvarez, Miriam, Afonina, Veronika, Dalladay-Simpson, Philip, Liu, Xiao-Di, Howie, Ross T., Gregoryanz, Eugene, Ackland, Graeme J.
We present a method for calculation of Raman modes of the quantum solid phase I solid hydrogen and deuterium. We use the mean-field assumption that the quantised excitations are localized on one molecule. This is done by explicit solution of the time
Externí odkaz:
http://arxiv.org/abs/2004.04449
Autor:
Zhang, Huichao, Tóth, Ondrej, Liu, Xiao-Di, Bini, Roberto, Gregoryanz, Eugene, Dalladay-Simpson, Philip, De Panfilis, Simone, Santoro, Mario, Gorelli, Federico, Martoňák, Roman
We report here a study of reversible pressure-induced structural transformation between two amorphous forms of SO$_2$: molecular at pressures below 26 GPa and polymeric above this pressure, at temperatures of 77 - 300 K. The transformation was observ
Externí odkaz:
http://arxiv.org/abs/1910.04438
Akademický článek
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Autor:
Turnbull, Robin, Donnelly, Mary-Ellen, Wang, Mengnan, Ji, Cheng, Dalladay-Simpson, Phillip, Pena-Alvarez, Miriam, Mao, Ho-kwang, Gregoryanz, Eugene, Howie, Ross T.
Publikováno v:
Phys. Rev. Lett. 121, 195702 (2018)
Through a series of Raman spectroscopy studies, we investigate the behaviour of hydrogen-helium and hydrogen-nitrogen mixtures at high pressure across wide ranging concentrations. We find that there is no evidence of chemical association, miscibility
Externí odkaz:
http://arxiv.org/abs/1807.06227
Autor:
Monserrat, Bartomeu, Drummond, Neil D., Dalladay-Simpson, Philip, Howie, Ross T., Ríos, Pablo López, Gregoryanz, Eugene, Pickard, Chris J., Needs, Richard J.
Publikováno v:
Phys. Rev. Lett. 120, 255701 (2018)
A new phase V of hydrogen was recently claimed in experiments above 325 GPa and 300 K. Due to the extremely small sample size at such record pressures the measurements were limited to Raman spectroscopy. The experimental data on increase of pressure
Externí odkaz:
http://arxiv.org/abs/1806.03025
Autor:
Wang, Mengnan, Kuzovnikov, Mikhail A., Binns, Jack, Li, Xiaofeng, Peña-Alvarez, Miriam, Hermann, Andreas, Gregoryanz, Eugene, Howie, Ross T.
Publikováno v:
Journal of Chemical Physics; 10/7/2023, Vol. 159 Issue 13, p1-6, 6p
Publikováno v:
Science 357, eaan2286 (2017)
Dias and Silvera (Letters, p. 715, 2017) claim the observation of the Wigner-Huntington transition to metallic hydrogen at 495 GPa. We show that neither the claims of the record pressure or the phase transition to a metallic state are supported by an
Externí odkaz:
http://arxiv.org/abs/1704.07601
Autor:
Marqueño, Tomas, Osmond, Israel, Kuzovnikov, Mikhail A., Shuttleworth, Hannah A., Gallego-Parra, Samuel, Gregoryanz, Eugene, Hermann, Andreas, Howie, Ross T., Peña-Alvarez, Miriam
Publikováno v:
Inorganic Chemistry; 11/11/2024, Vol. 63 Issue 45, p21734-21741, 8p