High-energy X-ray Diffraction Studies of Alkylimidazolium Fluorohydrogenate Room Temperature Molten Salts at Spring-8 High-Energy X-ray Diffraction Beamline BL04B2

Nanostructure by high-energy X-ray diffraction

X-Ray Diffraction (XRD) has long been used to determine the atomic-scale structure of materials. This technique is based on the fact that the wavelength of X-rays is comparable to the distances between atoms in condensed matter. When a material exhibiting a long-range (i.e. at least micrometers), periodic atomic order, such as a crystal, is irradiated with X-rays it acts as an extended, well-de...

High temperature X-ray diffraction apparatus.

High Pressure-High Temperature, X-Ray Diffraction Apparatus

A tetrahedral-anvil press has been developed that permits x-ray diffraction powder measurements at pressures to 75 kb and temperatures to 1000°C. A counting technique, rather than photographic film, is used for x-ray detection. Sample tetrahedra of compressed LiH, boron, and boron-filled plastic are used in place of the pyrophyllite customarily used for this purpose. Two possible entrance pupil...

High-resolution High Energy X-ray Diffraction Studies of Charge Ordering in Cmr Manganites and Nickelates

High-resolution, high-energy, X-ray diffraction results are presented for the study of weak charge ordering phenomenon. By utilizing X-rays in the 100 keV region the dramatic increase in the penetration depth allows for both bulk-sensitive and highresolution measurements to be made. The strontium doped La2NiO4 system is a prototypical system in the understanding of strong electron-phonon coupli...

Beamline electrostatic levitator for in situ high energy x-ray diffraction studies of levitated solids and liquids

Determinations of the phase formation sequence, crystal structures and the thermo-physical properties of materials at high temperatures are hampered by contamination from the sample container and environment. Containerless processing techniques, such as electrostatic sESLd, electromagnetic, aerodynamic, and acoustic levitation, are most suitable for these studies. An adaptation of ESL for in si...