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Reflecting Laser-Driven Shocks in Diamond in the Megabar Pressure Range
(Chinese Laser Press and Cambridge University Press, 2021-01-08)
In this work we present experimental results on the behavior of diamond at megabar pressure. The experiment was performed using the PHELIX facility at GSI in Germany to launch a planar shock into solid multi-layered diamond ...
The stochastic self-consistent harmonic approximation: calculating vibrational properties of materials with full quantum and anharmonic effects
(IOP Publishing Ltd, 2021-07-13)
[EN] The efficient and accurate calculation of how ionic quantum and thermal fluctuations impact
the free energy of a crystal, its atomic structure, and phonon spectrum is one of the main
challenges of solid state physics, ...
Quantum anharmonic enhancement of superconductivity in P63/mmc ScH6 at high pressures: A first-principles study
(AIP Publishing, 2021-11-05)
Making use of first-principles calculations, we analyze the effect of quantum ionic fluctuations and lattice anharmonicity on the crystal structure and superconductivity of P63/mmc ScH6 in the 100–160 GPa pressure range ...
Black metal hydrogen above 360 GPa driven by proton quantum fluctuations
(Nature Physics, 2020-09-07)
Hydrogen metallization under stable conditions is a major quest for realizing the first room temperature su-
perconductor. Recent low-temperature experiments report different metallization pressures, varying from 360GPa ...
Quantum crystal structure in the 250-kelvin superconducting lanthanum hydride
(Springer Nature, 2020-02-05)
The discovery of superconductivity at 200 kelvin in the hydrogen sulfide system at high pressures demonstrated the potential of hydrogen-rich materials as high-temperature superconductors. Recent theoretical predictions ...
Magnetosomes could be protective shields against metal stress in magnetotactic bacteria
(Nature, 2020-07)
Magnetotactic bacteria are aquatic microorganisms with the ability to biomineralise membrane-enclosed magnetic nanoparticles, called magnetosomes. These magnetosomes are arranged into a chain that behaves as a magnetic ...
Modifying the magnetic response of magnetotactic bacteria: incorporation of Gd and Tb ions into the magnetosome structure
(Royal Society of Chemistry, 2022-06)
Magnetotactic bacteria Magnetospirillum gryphiswaldense MSR-1 biosynthesise chains of cube-octahedral magnetosomes, which are 40 nm magnetite high quality (Fe3O4) nanoparticles. The magnetic properties of these crystalline ...
Magnetotactic bacteria for cancer therapy
(American Institute of Physics, 2020-08-21)
Magnetotactic bacteria (MTB) are aquatic microorganisms that are able to biomineralize membrane-enclosed magnetic nanoparticles called magnetosomes. Inside the MTB, magnetosomes are arranged in a chain that allows MTB to ...
Investigating the Size and Microstrain Influence in the Magnetic Order/Disorder State of GdCu2 Nanoparticles
(MDPI, 2020-06-05)
A series of GdCu [Math Processing Error] nanoparticles with controlled sizes ranging from 7 nm to 40 nm has been produced via high-energy inert-gas ball milling. Rietveld refinements on the X-ray diffraction measurements ...
Influence of Upconversion Processes in the Optically-Induced Inhomogeneous Thermal Behavior of Erbium-Doped Lanthanum Oxysulfide Powders
(MDPI, 2016-05-11)
The efficient infrared-to-visible upconversion emission present in Er-doped lanthanum oxysulfide crystal powders is used as a fine thermal sensor to determine the influence of upconversion processes on the laser-induced ...