Results 11 to 20 of about 66,580 (245)

High-fluence and high-gain multilayer focusing optics to enhance spatial resolution in femtosecond X-ray laser imaging

open access: yesNature Communications, 2022
Here, the authors realize an ultra-high fluence X-ray laser by high-gain multilayer focusing optics. This enables in-solution imaging with 2-nm resolution in a single-pulse exposure, making strides toward biomolecular imaging under physiological ...
Hirokatsu Yumoto   +9 more
doaj   +1 more source

Unconventional exciton evolution from the pseudogap to superconducting phases in cuprates

open access: yesNature Communications, 2022
The nature of the excitations in the pseudogap regime and their relation to superconductivity remain core issues in cuprate high-T c superconductivity.
A. Singh   +8 more
doaj   +1 more source

Engineering a local acid-like environment in alkaline medium for efficient hydrogen evolution reaction

open access: yesNature Communications, 2022
While catalysts have intrinsic activities toward reactions, such performances often require further optimization. Here, authors engineer an acid-like environment in alkaline media by fine-tuning the reaction environment of platinum nanoparticles on oxide
Hao Tan   +13 more
doaj   +1 more source

Visualizing the valence states of europium ions in Eu-doped BaAl2O4 using X-ray nanoprobe mapping

open access: yesJournal of Synchrotron Radiation, 2022
This study develops and successfully demonstrates visualization methods for the characterization of europium (Eu)-doped BaAl2O4 phosphors using X-ray nanoprobe techniques.
Yu-Hao Wu   +10 more
doaj   +1 more source

Relation between the Co-O bond lengths and the spin state of Co in layered Cobaltates: a high-pressure study

open access: yesScientific Reports, 2017
The pressure-response of the Co-O bond lengths and the spin state of Co ions in a hybrid 3d-5d solid-state oxide Sr2Co0.5Ir0.5O4 with a layered K2NiF4-type structure was studied by using hard X-ray absorption and emission spectroscopies. The Co-K and the
Yi-Ying Chin   +16 more
doaj   +1 more source

Embedding atomic cobalt into graphene lattices to activate room-temperature ferromagnetism

open access: yesNature Communications, 2021
Graphene has shown incredible promise as ideal material for numerous fields; however its use in spintronics has been hampered by the lack of intrinsic magnetism.
Wei Hu   +11 more
doaj   +1 more source

Specific radiation damage is a lesser concern at room temperature

open access: yesIUCrJ, 2019
Carrying out macromolecular crystallography (MX) experiments at cryogenic temperatures significantly slows the rate of global radiation damage, thus facilitating the solution of high-resolution crystal structures of macromolecules.
Guillaume Gotthard   +5 more
doaj   +1 more source

Bayesian framework for analyzing adsorption processes observed via time-resolved X-ray diffraction

open access: yesScientific Reports, 2023
Clarifying dynamic processes of materials is an important research topic in materials science. Time-resolved X-ray diffraction is a powerful technique for probing dynamic processes.
Yuichi Yokoyama   +2 more
doaj   +1 more source

Comparative study of Ar-implanted Ti-Zr-V non-evaporable getter films on the Al-alloy substrate

open access: yesAIP Advances, 2018
Original and Ar-implanted Ti-Zr-V non-evaporable getter (NEG) films were characterized using scanning electron microscope, X-ray diffractometer, electron spectroscopy for chemical analysis, and transmission electron microscopy.
Ling-Hui Wu   +6 more
doaj   +1 more source

Tilting and rotational motions of silver halide crystal with diffracted X-ray blinking

open access: yesScientific Reports, 2021
The dynamic properties of crystalline materials are important for understanding their local environment or individual single-grain motions. A new time-resolved observation method is required for use in many fields of investigation.
Masahiro Kuramochi   +10 more
doaj   +1 more source

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