Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Moshe P, Pasternak"'
Autor:
Weiming Xu, Weiwei Dong, Samar Layek, Mark Shulman, Konstantin Glazyrin, Elena Bykova, Maxim Bykov, Michael Hanfland, Moshe P. Pasternak, Ivan Leonov, Eran Greenberg, Gregory Kh. Rozenberg
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract The pressure-induced Mott insulator-to-metal transitions are often accompanied by a collapse of magnetic interactions associated with delocalization of 3d electrons and high-spin to low-spin (HS-LS) state transition. Here, we address a long-
Externí odkaz:
https://doaj.org/article/668198ff61c64a4caa1e11a3ee94a1d9
Autor:
Eran Greenberg, Ivan Leonov, Samar Layek, Zuzana Konopkova, Moshe P. Pasternak, Leonid Dubrovinsky, Raymond Jeanloz, Igor A. Abrikosov, Gregory Kh. Rozenberg
Publikováno v:
Physical Review X, Vol 8, Iss 3, p 031059 (2018)
We provide experimental and theoretical evidence for a pressure-induced Mott insulator-metal transition in Fe_{2}O_{3} characterized by site-selective delocalization of the electrons. Density functional plus dynamical mean-field theory (DFT+DMFT) cal
Externí odkaz:
https://doaj.org/article/e1edccfba9364de59310830e6fca8881
Autor:
Weiming, Xu, Weiwei, Dong, Samar, Layek, Mark, Shulman, Konstantin, Glazyrin, Elena, Bykova, Maxim, Bykov, Michael, Hanfland, Moshe P, Pasternak, Ivan, Leonov, Eran, Greenberg, Gregory Kh, Rozenberg
Publikováno v:
Scientific reports. 12(1)
The pressure-induced Mott insulator-to-metal transitions are often accompanied by a collapse of magnetic interactions associated with delocalization of 3d electrons and high-spin to low-spin (HS-LS) state transition. Here, we address a long-standing
Autor:
Jean-Paul Itié, Eran Greenberg, Samar Layek, G. Kh. Rozenberg, Davide Levy, Kavita Mehlawat, Yogesh Singh, Moshe P. Pasternak
Publikováno v:
Physical Review B. 102
The honeycomb lattice iridates ${A}_{2}\mathrm{Ir}{\mathrm{O}}_{3}$ ($A=\mathrm{Na}$, Li) are spin-orbit assisted Mott insulators proximate to Kitaev's quantum spin liquid. The insulating state as well as the magnetic properties are believed to arise
Autor:
G. Kh. Rozenberg, Davide Levy, Zuzana Konôpková, Carlo Marini, Moshe P. Pasternak, Eran Greenberg, Innokenty Kantor, Samar Layek, Sakura Pascarelli
Publikováno v:
Physical Review B. 101
We report high-pressure x-ray diffraction, x-ray absorption spectroscopy, and electrical transport measurements on $\mathrm{Cu}M{\mathrm{O}}_{2}$ ($M=\mathrm{Cr}$, Mn) delafossitelike oxides in an attempt to study their structural and electronic evol
Autor:
G. R. Hearne, G. Kh. Rozenberg, W. M. Xu, Samar Layek, Eran Greenberg, Moshe P. Pasternak, Davide Levy
Publikováno v:
Physical Review B. 97
X-ray diffraction pressure studies at room temperature demonstrate that the spinel $\mathrm{FeA}{\mathrm{l}}_{2}{\mathrm{O}}_{4}$ transforms to a tetragonal phase at \ensuremath{\sim}18 GPa. This tetragonal phase has a highly irregular unit-cell volu
Autor:
Jean-Paul Itié, Davide Levy, Eran Greenberg, W. M. Xu, G. R. Hearne, G. Kh. Rozenberg, Moshe P. Pasternak, Samar Layek
Publikováno v:
Physical Review B. 96
X-ray diffraction studies to $\ensuremath{\sim}90\phantom{\rule{4.pt}{0ex}}\text{GPa}$ at room temperature show that $\mathrm{F}{\mathrm{e}}_{2}\mathrm{Ti}{\mathrm{O}}_{4}$ ferrous inverse spinel undergoes the following sequence of structural transit
Autor:
Gaston Garbarino, G. Kh. Rozenberg, Leonid Dubrovinsky, Dániel G. Merkel, W. M. Xu, Moshe P. Pasternak, Eran Greenberg, Elena Bykova, Mark Nikolaevsky, Konstantin Glazyrin
Publikováno v:
Physical Review B. 95
Magnetic, electronic, and structural properties of $M\mathrm{F}{\mathrm{e}}_{2}{\mathrm{O}}_{4} (M=\mathrm{Mg},\mathrm{Zn},\mathrm{Fe})$ ferric spinels have been studied by $^{57}\mathrm{Fe}$ M\"ossbauer spectroscopy, electrical conductivity, and pow
Autor:
G. Kh. Rozenberg, Alexander Palevski, M. Karpovski, Yuri Rosenberg, Samar Layek, Irina Pozin, E. Sterer, Victor Shelukhin, Bar Hen, Eran Greenberg, Moshe P. Pasternak, Yoram Dagan, Roee Friedman
Publikováno v:
Physical Review B. 95
Here we report the discovery of superconductivity in multiple phases of the compressed $\mathrm{GeS}{\mathrm{b}}_{2}\mathrm{T}{\mathrm{e}}_{4}$ (GST) phase change memory alloy, which has attracted considerable attention for the last decade due to its
Autor:
Jean-Paul Itié, Moshe P. Pasternak, Eran Greenberg, W. M. Xu, Samar Layek, G. Kh. Rozenberg, Davide Levy, G. R. Hearne
Publikováno v:
Physical Review B. 95
The interplay between lattice, orbital, and spin degrees of freedom in iron chromite (spinel $[\mathrm{Fe}]{\mathrm{C}{\mathrm{r}}_{2}}{\mathrm{O}}_{4})$ has been investigated to near megabar pressures. The cubic-to-tetragonal transition, from static