Electron holography
Electron Holography of Nanocrystalline Magnetic Materials
... Electron holography study on magnetic domain structures of nanocrystalline magnetic materials was overviewed mainly based on the experimental results recently obtained by the author and his ...colleagues. ...
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In situ Electron Holography Observation of FePt Nanoparticles at Elevated Temperatures
... 3.3 Electron holography of islands of FePt nanoparticles Figures 4(a) and (b) show an electron hologram of an island of FePt particles with sizes of 1 mm and a phase image reproduced from the ...
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High resolution analytical imaging and electron holography of magnetite particles in amyloid cores of Alzheimer’s disease
... transmission electron microscopy (TEM) techniques, including spherical aberration-corrected scanning transmission electron microscopy (Cs-STEM), nano-beam electron diffraction, electron ...
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Observation of Magnetic Domain Structure in Fe81B15Si4 Amorphous Alloy by Lorentz Microscopy and Electron Holography
... The magnetic properties of this material can be improved by heat treatment. In order to understand the effects of heat treatment, the magnetic domain structures in partially crystallized Fe-Si-B alloys have been observed. ...
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Magnetization Process in Sm2Fe17N3 Fine Powders Studied Using Lorentz Microscopy and Electron Holography
... Observations of the magnetization process were carried by Lorentz microscopy and electron holography using a JEM- 3000F transmission electron microscope (TEM) system equipped with a field emission gun ...
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Assessment of off-axis and in-line electron holography for measurement of potential variations in Cu(In,Ga)Se2 thin-film solar cells
... Electron holography is employed to study variations of the electrostatic crystal potential in Cu(In,Ga)Se 2 (CIGS) thin-film solar cells at different length scales: Long-range potential variations across ...
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Interaction between Magnetic Domain Walls and Antiphase Boundaries in Ni2Mn(Al,Ga) Studied by Electron Holography and Lorentz Microscopy
... phase. A magnetic field, which is approximately parallel to the foil plane, was applied by using a magnetizing stage. 24) Figure 2(a) shows a Lorentz micrograph in the parent phase in the absence of an applied magnetic ...
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In Situ Observations of Magnetization Process in Alnico Magnets by Electron Holography and Lorentz Microscopy
... Both electron holography and Lorentz microscopy experiments were carried out using a JEM-3000F transmission electron microscope with a special pole piece for shielding the magnetic field due to the ...
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In Situ Lorentz Microscopy and Electron Holography of Magnetization Process in Ferrite Magnets
... The magnetic domain structures and magnetization processes of anisotropic Ba and Sr ferrite magnets are investigated by Lorentz microscopy and electron holography. By utilizing a sharp magnetic needle made ...
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Visualization of Electrochemical Reactions in All Solid State Li Ion Batteries by Spatially Resolved Electron Energy Loss Spectroscopy and Electron Holography
... Transmission electron microscopy (TEM) is an appropriate technique for such local- scale analysis inside ...resolved electron energy-loss spectroscopy and in situ electron holography, we ...
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Effects of Dynamical Electron Diffraction on Phase Shift Detected by Electron Holography
... diffracted beam for the dark-field electron holography was also discussed. 13) In our research, we recorded holograms from a wedge-shaped specimen of single-crystal Si around a Bragg di ff raction condition. ...
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Electron Holography Study of Secondary Electron Distribution around Charged Epoxy Resin
... Transmission electron microscopy (TEM) techniques have been widely utilized to study the microstructures of various ...techniques, electron holography has the unique feature of enabling the ...
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Electron Holography of Charging Effect in ZrO2 Sintered Body
... C, during the exposure time, respectively. Interestingly, the experiment results (Figs. 5(c) and (d)) are in agreement with the simulation results (Figs. 6(a) and (b)). Thus, these results reveal that the amount of ...
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Visualized effect of oxidation on magnetic recording fidelity in pseudo single domain magnetite particles
... off-axis electron holography investigation has demonstrated changes in both remanent magnetic field strength and direction of magnetization within individual PSD particles as a consequence of accelerated ...
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Transmission Electron Microscopy Study on the Grain Boundaries and Magnetic Domains in Nd–Fe–B Based Magnets
... transmission electron microscopes (JEM-2010 and ...transmission electron microscope ...by electron holography 20) using another electron ...
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Recent Advances in Domain Analysis
... Taking into consideration the trend of recent materials science, in which new amazing properties and/or phenomena are realized by combinations of distinct nano-scaled phases, the importance of domain analysis (or ...
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Quantitative Electron Holographic Analysis of Electric Potential Distribution around FEG Emitters
... using electron microscopy, the stability of the electron beam emitted from a FEG-emitter and the performance of the emitter are of vital ...out electron holography measurements, which is a ...
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Magnetic Domain Structure and Magnetic Hardening in Sm Fe Mn N Coarse Powder
... and electron holography. The magnetic domain walls are aligned along the magnetization easy axis (c axis) and are connected with one another along amorphous layers that are distributed along the direction ...
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Resolution improvement methods applied to digital holography
... This section discusses the potential of the synthetic-aperture method in digi- tal holography to increase the resolution, to perform high accuracy deformation measurement and to obtain a three dimensional topology ...
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Holography and thermalization in optical pump-probe spectroscopy
... Holography rests on the matrix large N limit governing the ultraviolet (UV) of the boundary field theory and it is a priori unclear when one is dealing with pathologies associated with this limit. The pump-probe ...
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