Results 1 to 10 of about 845,891 (228)
Structural dynamics of incommensurate charge-density waves tracked by ultrafast low-energy electron diffraction [PDF]
Structural Dynamics, 2020 We study the non-equilibrium structural dynamics of the incommensurate and nearly commensurate charge-density wave (CDW) phases in 1T- TaS 2. Employing ultrafast low-energy electron diffraction with 1 ps temporal resolution, we investigate the ...
G. Storeck +7 more
doaj +2 more sources
Sub-ångström resolution ptychography in a scanning electron microscope at 20 keV [PDF]
Nature CommunicationsAchieving sub-ångström (30 keV) beam and a transmission electron microscope (TEM) fitted with an aberration corrector and a high efficiency, high pixel-count camera.
Arthur M. Blackburn +3 more
doaj +2 more sources
Phase ordering of charge density waves traced by ultrafast low-energy electron diffraction [PDF]
Nature Physics, 2017 We introduce ultrafast low-energy electron diffraction (ULEED) in backscattering for the study of structural dynamics at surfaces. Using a tip-based source of ultrashort electron pulses, we investigate the optically driven transition between charge ...
S. Vogelgesang +8 more
semanticscholar +1 more source
Optical fiber-driven low-energy electron gun for time-resolved streak diffraction [PDF]
EPJ Web of Conferences, 2019 The wave guiding feature of the optical fibre optical fibres is specifically exploited to construct a novel type of electron gun to realize single-shot low-energy electron diffraction experiments with the sub-picosecond resolution for studying ...
Lee Chiwon +2 more
doaj +1 more source
Communications Materials, 2022 Ultrafast low-energy electron diffraction allows the direct observation of atomic motions in structural transitions, but is accompanied by a strong photoinduced emission resulting in surface field effects. Here, these effects are quantified, enabling the
Chiwon Lee +3 more
doaj +1 more source
One-Step Theory View on Photoelectron Diffraction: Application to Graphene
Nanomaterials, 2022 Diffraction of photoelectrons emitted from the core 1s and valence band of monolayer and bilayer graphene is studied within the one-step theory of photoemission. The energy-dependent angular distribution of the photoelectrons is compared to the simulated
Eugene Krasovskii
doaj +1 more source
Journal of Materials Research and Technology, 2022 The correlation between microstructure, crystallographic orientation and grain boundaries characteristics of an austenitic high manganese steel was systematically investigated.
Marcos Natan da Silva Lima +7 more
doaj +1 more source
Optimum technological modes of ion implantation and subsequent annealing for formation of thin nanosized silicide films [PDF]
E3S Web of Conferences, 2021 Using the methods of electron spectroscopy and slow electron diffraction, we studied the processes of the formation of nanosized metal silicide films in the near-surface region of Si (111) and Si (100) during low-energy implantation of Ba ions and ...
Bekpulatov Ilkhom +3 more
doaj +1 more source
Structural phase transitions and phase ordering at surfaces probed by ultrafast LEED [PDF]
EPJ Web of Conferences, 2019 We demonstrate the capability of ultrafast low-energy electron diffraction to resolve phase-ordering kinetics and structural phase transitions on their intrinsic time scales with ultimate surface sensitivity.
Horstmann Jan Gerrit +8 more
doaj +1 more source
Low-energy electron diffraction from disordered surfaces [PDF]
, 1978 Model calculations are presented of L E E D intensities diffracted by a onedimensionally disordered overlayer adsorbed on a well ordered substrate. Multiple scattering amplitudes are calculated by an extension of Beeby's multiple scattering method ...
Moritz, Wolfgang
core +1 more source