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Showing 1 to 6 of 6 for “"high resolution electron microscopy (HREM)"”.
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Lattice Strain Measurements of Deuteride Phase Formation in Epitaxial Niobium on Sapphire
… dislocation formation has been confirmed with high-resolution electron microscopy (HREM) for the 1200A Nb film. The HREM images were used to estimate a dislocation density of 1012 cm-2 after repeated cycling. A residual out-of-plane compressive strain was observed in the 1200A Nb film after …
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Characterization of III-V compound semiconductor heterostructures grown by metalorganic chemical vapor deposition
… much attention because of their application to high speed electronic and optoelectronic devices. For achieving these purposes, it is required to produce high quality samples with uniform layer thickness, no defects, and abrupt interfaces. For this metalorganic chemical vapor deposition (MOCVD) …
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The role of defects during precipitate growth in a Ni-45wt% Cr alloy
… lath except for atomic-scale structural ledges. High resolution electron microscopy (HREM) observations show the (12¯1)<sub>f</sub> habit plane is coherent and is a good matching interface. Based upon conventional transmission electron microscopy (TEM) observations, the orientation of the habit …
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Synthesis and Characterization of Nanocrystalline Niobium Aluminides by Laser Ablation Technique
… energy densities. By conventional transmission electron microscopy (TEM), we observe that the mean diameter of the nanocrystalline particles is 5 to 13 nm depending on the processing condition. Analysis of electron diffraction patterns suggests that the crystal structure of the majority of …
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Minimizing electron optical aberrations
… deals with topics of aberration reduction in high voltage ("""" 100 k V) electron optical instruments, especially used for lithography (SCALPEL) and high resolution electron microscopy (HREM). Since the invention by Berger and Gibson [1) in 1989, SCALPEL (SCattering with Angular Limitation in …
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In-situ electron imaging of oxidation and reduction of rutile (TiO2) nanocrystals and interaction with palladium
… and interfaces, the catalytic reactions are highly dependent on the oxide surface structure and the interface with metal nanoparticles. Further, the oxides undergo the oxidation and reduction reactions as environment changes, the oxide surface structure also evolves dynamically during …