Structure of disordered materials under ambient to extreme conditions revealed by synchrotron x-ray diffraction techniques at SPring-8—recent instrumentation and …
K Ohara, Y Onodera, M Murakami… - Journal of Physics …, 2021 - iopscience.iop.org
The structure of disordered materials is still not well understood because of insufficient
experimental data. Indeed, diffraction patterns from disordered materials are very broad and …
experimental data. Indeed, diffraction patterns from disordered materials are very broad and …
Evidence for superconductivity above 260 K in lanthanum superhydride at megabar pressures
Recent predictions and experimental observations of high T c superconductivity in hydrogen-
rich materials at very high pressures are driving the search for superconductivity in the …
rich materials at very high pressures are driving the search for superconductivity in the …
Recent in situ experimental and theoretical advances in severe plastic deformations, strain-induced phase transformations, and microstructure evolution under high …
VI Levitas - Materials transactions, 2023 - jstage.jst.go.jp
Severe plastic deformations (SPD) under high pressure, mostly by high-pressure torsion, are
employed for producing nanostructured materials and stable or metastable high-pressure …
employed for producing nanostructured materials and stable or metastable high-pressure …
Experimental evidence for hydrogen incorporation into Earth's core
Hydrogen is one of the possible alloying elements in the Earth's core, but its siderophile
(iron-loving) nature is debated. Here we experimentally examined the partitioning of …
(iron-loving) nature is debated. Here we experimentally examined the partitioning of …
Synthesis and stability of lanthanum superhydrides
Recent theoretical calculations predict that megabar pressure stabilizes very hydrogen‐rich
simple compounds having new clathrate‐like structures and remarkable electronic …
simple compounds having new clathrate‐like structures and remarkable electronic …
Theoretical analysis on the possibility of superconductivity in the trilayer Ruddlesden-Popper nickelate under pressure and its experimental examination …
H Sakakibara, M Ochi, H Nagata, Y Ueki, H Sakurai… - Physical Review B, 2024 - APS
We study the possibility of superconductivity in a trilayer Ruddlesden-Popper nickelate La 4
Ni 3 O 10 under pressure both theoretically and experimentally, making comparison with the …
Ni 3 O 10 under pressure both theoretically and experimentally, making comparison with the …
Evidence for a new phase of dense hydrogen above 325 gigapascals
P Dalladay-Simpson, RT Howie, E Gregoryanz - Nature, 2016 - nature.com
Almost 80 years ago it was predicted that, under sufficient compression, the H–H bond in
molecular hydrogen (H2) would break, forming a new, atomic, metallic, solid state of …
molecular hydrogen (H2) would break, forming a new, atomic, metallic, solid state of …
A stable compound of helium and sodium at high pressure
Helium is generally understood to be chemically inert and this is due to its extremely stable
closed-shell electronic configuration, zero electron affinity and an unsurpassed ionization …
closed-shell electronic configuration, zero electron affinity and an unsurpassed ionization …
Pressure calibration of diamond anvil Raman gauge to 310GPa
Y Akahama, H Kawamura - Journal of Applied Physics, 2006 - pubs.aip.org
In order to develop an optical method for pressure determination in the multimegabar region,
the first-order Raman spectra of diamond anvils were investigated at pressures up to 310 …
the first-order Raman spectra of diamond anvils were investigated at pressures up to 310 …
Establishing gold and platinum standards to 1 terapascal using shockless compression
New techniques are advancing the frontier of high-pressure physics beyond 1 terapascal,
leading to new discoveries and offering stringent tests for condensed-matter theory and …
leading to new discoveries and offering stringent tests for condensed-matter theory and …