Zobrazeno 1 - 10
of 1 101
pro vyhledávání: '"Dubrovinsky, L"'
Ji et al. report performing X-ray diffraction on hydrogen compressed to over 250 GPa (https://doi.org/10.1038/s41586-019-1565-9). It is a remarkable technical achievement. However, the experimental data presented and discussed in the paper do not sup
Externí odkaz:
http://arxiv.org/abs/1910.10772
Autor:
Koemets, E., Fedotenko, T., Khandarkhaeva, S., Bykov, M., Bykova, E., Thielmann, M., Chariton, S., Aprilis, G., Koemets, I., Liermann, H. -P., Hanfland, M., Ohtani, E., Dubrovinskaia, N., McCammon, C., Dubrovinsky, L.
Goethite, {\alpha}-FeOOH, is a major component among oxidized iron species, called rust, which formed as a product of metabolism of anoxygenic prokaryotes (1, 2) inhabiting the Earth from about 3.8 billion years (Gy) ago until the Great Oxidation Eve
Externí odkaz:
http://arxiv.org/abs/1908.02114
Autor:
Koemets, E., Leonov, I., Bykov, M., Bykova, E., Chariton, S., Aprilis, G., Fedotenko, T., Clément, S., Rouquette, J., Haines, J., Cerantola, V., Glazyrin, K., McCammon, C., Prakapenka, V. B., Hanfland, M., Liermann, H. -P., Svitlyk, V., Torchio, R., Rosa, A. D., Irifune, T., Ponomareva, A. V., Abrikosov, I. A., Dubrovinskaia, N., Dubrovinsky, L.
Publikováno v:
Phys. Rev. Lett. 126, 106001 (2021)
Extreme pressures and temperatures are known to drastically affect the chemistry of iron oxides resulting in numerous compounds forming homologous series $n$FeO$\cdot m$Fe$_2$O$_3$ and the appearance of FeO$_2$. Here, based on the results of \emph{in
Externí odkaz:
http://arxiv.org/abs/1905.05497
Autor:
Majumder, M., Manna, R. S., Simutis, G., Orain, J. C., Dey, T., Freund, F., Jesche, A., Khasanov, R., Biswas, P. K., Bykova, E., Dubrovinskaia, N., Dubrovinsky, L. S., Yadav, R., Hozoi, L., Nishimoto, S., Tsirlin, A. A., Gegenwart, P.
Publikováno v:
Phys. Rev. Lett. 120, 237202 (2018)
Temperature-pressure phase diagram of the Kitaev hyperhoneycomb iridate $\beta$-Li$_2$IrO$_3$ is explored using magnetization, thermal expansion, magnetostriction, and muon spin rotation ($\mu$SR) measurements, as well as single-crystal x-ray diffrac
Externí odkaz:
http://arxiv.org/abs/1802.06819
Autor:
Vasiukov, D. M., Dubrovinsky, L., Kupenko, I., Cerantola, V., Aprilis, G., Ismailova, L., Bykova, E., McCammon, C., Prescher, C., Chumakov, A. I., Dubrovinskaia, N.
High pressure can provoke spin transitions in transition metal-bearing compounds. These transitions are of high interest not only for fundamental physics and chemistry, but also may have important implications for geochemistry and geophysics of the E
Externí odkaz:
http://arxiv.org/abs/1710.03192
Autor:
Greenberg, E., Leonov, I., Layek, S., Konopkova, Z., Pasternak, M. P., Dubrovinsky, L., Jeanloz, R., Abrikosov, I. A., Rozenberg, G. Kh.
Publikováno v:
Phys. Rev. X 8, 031059 (2018)
We provide experimental and theoretical evidence for a novel type of pressure-induced insulator-metal transition characterized by site-selective delocalization of the electrons. M\"ossbauer spectroscopy, X-ray diffraction and electrical transport mea
Externí odkaz:
http://arxiv.org/abs/1706.02787
Autor:
Valkovskiy, G. A., Altynbaev, E. V., Kuchugura, M. D., Yashina, E. G., Dyadkin, V. A., Tsvyashchenko, A. V., Sidorov, V. A., Fomicheva, L. N., Bykov, M., Bykova, E., Dubrovinsky, L., Chernyshov, D. Yu., Grigoriev, S. V.
Synchrotron diffraction as a function of temperature and pressure, specific heat, magnetic susceptibility and small-angle neutron scattering experiments have revealed an anomalous response of MnGe. Similar but less pronounced behavior has also been o
Externí odkaz:
http://arxiv.org/abs/1508.04701
Autor:
Glazyrin, K., Pourovskii, L. V., Dubrovinsky, L., Narygina, O., McCammon, C., Hewener, B., Schünemann, V., Wolny, J., Muffler, K., Chumakov, A. I., Crichton, W., Hanfland, M., Prakapenka, V., Tasnádi, F., Ekholm, M., Aichhorn, M., Vildosola, V., Ruban, A. V., Katsnelson, M. I., Abrikosov, I. A.
Publikováno v:
Phys. Rev. Lett. 110, 117206 (2013)
We discover that hcp phases of Fe and Fe0.9Ni0.1 undergo an electronic topological transition at pressures of about 40 GPa. This topological change of the Fermi surface manifests itself through anomalous behavior of the Debye sound velocity, c/a latt
Externí odkaz:
http://arxiv.org/abs/1204.5130
Publikováno v:
Phys. Rev. B 87, 115130 (2013)
We employ state-of-the-art ab initio simulations within the dynamical mean-field theory to study three likely phases of iron (hexogonal close-packed, hcp, face centered cubic, fcc, and body centered cubic, bcc) at the Earth's core conditions. We demo
Externí odkaz:
http://arxiv.org/abs/1204.3954
Autor:
Mishra, S. K., Mittal, R., Chaplot, S. L., Ovsyannikov, S. V., Trots, D. M., Dubrovinsky, L., Su, Y., Brueckel, Th., Matsuishi, S., Hosono, H., Garbarino, G.
Publikováno v:
Physical Review B 84, 224513 (2011)
We report systematic investigation of high pressure crystal structures and structural phase transition upto 46 GPa in CaFeAsF and 40 GPa in SrFeAsF at 40 K using powder synchrotron x-ray diffraction experiments and Rietveld analysis of the diffractio
Externí odkaz:
http://arxiv.org/abs/1105.1649