Results 311 to 320 of about 4,274,938 (365)

Electron Diffraction and Convergent Beam Electron Diffraction (CBED)

2017
A transmission electron microscope (TEM) is based on diffraction phenomena in specimens and image formation by an electromagnetic lens as a convex lens. For thin specimens and single atoms, we can use “phase object approximation (POA)” and “weak-phase object approximation (WPOA).”
N. Tanaka
openaire   +3 more sources

Simultaneous observation of nuclear and electronic dynamics by ultrafast electron diffraction

Science, 2020
Electronic and nuclear dynamics in one Because of the complex, ultrafast interplay between nuclear and electronic degrees of freedom, probing both nuclear and electronic dynamics in excited electronic states within a single time-resolved experiment is a ...
Jie Yang   +17 more
semanticscholar   +1 more source

Electron Spectroscopic Diffraction

Ultramicroscopy, 1990
In principle, electron diffraction studies in a transmission electron microscope (TEM) provide much the same crystallographic information as does X-ray or neutron diffraction. Compared to the latter two, two important problems arise in electron diffraction owing to the much stronger interaction of electrons with matter: 1) The kinematical ...
I. Naundorf, I. Fromm, Ludwig Reimer
openaire   +2 more sources

Specifics of the data processing of precession electron diffraction tomography data and their implementation in the program PETS2.0.

Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials, 2019
Electron diffraction tomography (EDT) data are in many ways similar to X-ray diffraction data. However, they also present certain specifics. One of the most noteworthy is the specific rocking curve observed for EDT data collected using the precession ...
L. Palatinus   +5 more
semanticscholar   +1 more source

Precession Electron Diffraction

2012
Abstract Precession electron diffraction is considered a key technique available to electron microscopists to elucidate the structure of a wide variety of crystals. Although originally envisaged as a method to produce integrated intensities that could be used for structure solution and refinement, precession electron diffraction has proved much more ...
Eggeman, Alexander S., Midgley, Paul A.
openaire   +3 more sources

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