Results 21 to 30 of about 4,400,799 (289)

Crystal symmetry determination in electron diffraction using machine learning [PDF]

open access: yesScience, 2019
Speedy crystallography Electron backscatter diffraction is one standard technique for determining crystal structure, typically of materials or geological samples.
Kevin Kaufmann   +6 more
semanticscholar   +1 more source

Scanning electron diffraction tomography of strain [PDF]

open access: yesInverse Problems, 2020
Abstract: Strain engineering is used to obtain desirable materials properties in a range of modern technologies. Direct nanoscale measurement of the three-dimensional strain tensor field within these materials has however been limited by a lack of suitable experimental techniques and data analysis tools.
Robert Tovey   +7 more
openaire   +6 more sources

Single-Shot Electron Diffraction using a Cold Atom Electron Source [PDF]

open access: yes, 2015
Cold atom electron sources are a promising alternative to traditional photocathode sources for use in ultrafast electron diffraction due to greatly reduced electron temperature at creation, and the potential for a corresponding increase in brightness ...
McCulloch, Andrew J.   +5 more
core   +2 more sources

Liquid-phase mega-electron-volt ultrafast electron diffraction

open access: yesStructural Dynamics, 2020
The conversion of light into usable chemical and mechanical energy is pivotal to several biological and chemical processes, many of which occur in solution.
J. P. F. Nunes   +20 more
doaj   +1 more source

Ultrafast electron diffraction of THz-excited nanostructures [PDF]

open access: yesEPJ Web of Conferences, 2019
We study the electromagnetic response of nanostructures to single-cycle THz excitation by using ultrafast electron diffraction. Although the nanostructures themselves are static, there exist complex sub-THz-cycle Bragg spot dynamics that relate via time ...
Mohler Kathrin J., Baum Peter
doaj   +1 more source

Electron Backscatter Diffraction Study of Ultrahigh-Pressure Tso Morari Eclogites (Trans-Himalayan Collisional Zone): Implications for Strain Regime Transition from Constrictional to Plane Strain during Exhumation

open access: yesLithosphere, 2022
The Tso Morari Crystalline Complex (TMCC) of trans-Himalaya (eastern Ladakh, India) contains enclaves of ultrahigh-pressure eclogites that underwent deep burial (≥80 km) and subsequent rapid exhumation during continental subduction, collision, and final ...
Alosree Dey   +2 more
doaj   +1 more source

Reflection electron energy loss spectroscopy during initial stages of Ge growth on Si by molecular beam epitaxy [PDF]

open access: yes, 1991
Using a conventional reflection high-energy electron diffraction gun together with an electron energy loss spectrometer, we have combined in situ measurements of inelastic scattering intensities from Si L2,3 and Ge L2,3 core losses with reflection ...
Ahn, Channing C., Atwater, Harry A.
core   +1 more source

Demonstrating the potential of Accurate Absolute Cross-grain Stress and Orientation correlation using Electron Backscatter Diffraction [PDF]

open access: yes, 2018
We report a first exploration of High-angular-Resolution Electron Backscatter Diffraction, without using simulated Electron Backscatter Diffraction patterns as a reference, for absolute stress and orientation measurements in polycrystalline materials. By
De Graef, Marc   +2 more
core   +2 more sources

Crystalline Sponge Method by Three-Dimensional Electron Diffraction

open access: yesFrontiers in Molecular Biosciences, 2022
The crystalline sponge method has shown to be a novel strategy for the structure determination of noncrystalline, oily, or trace amount of a compound.
Pohua Chen   +5 more
doaj   +1 more source

X-Ray sum frequency generation; direct imaging of ultrafast electron dynamics [PDF]

open access: yes, 2018
X-ray diffraction from molecules in the ground state produces an image of their charge density, and time-resolved X-ray diffraction can thus monitor the motion of the nuclei.
Bennett, Kochise   +3 more
core   +2 more sources

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