Results 21 to 30 of about 218,239 (261)
Food Science of Animal Resources, 2023 Osteoporosis is a growing global health concern primarily associated with decreased estrogen in postmenopausal women. Recently, some strains of probiotics were examined for potential anti-osteoporotic effects.
Eun-Sun Jin +7 more
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Complementary ADF-STEM: a Flexible Approach to Quantitative 4D-STEM
Ultramicroscopy, 2023 Scanning transmission electron microscopy (STEM) has a broad range of applications in materials characterization, including real-space imaging, spectroscopy, and diffraction, at length scales from the micron to sub-Ångström. The recent development and adoption of high-speed, direct electron STEM detectors has enabled diffraction patterns to be ...
Bryan D. Esser, Joanne Etheridge
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npj Computational Materials, 2021 The 4D scanning transmission electron microscopy (STEM) method maps the structure and functionality of solids on the atomic scale, yielding information-rich data sets describing the interatomic electric and magnetic fields, structural and electronic ...
Mark P. Oxley +5 more
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Nanomaterials, 2021 We introduce a novel scanning electron microscopy (SEM) method which yields powder electron diffraction patterns. The only requirement is that the SEM microscope must be equipped with a pixelated detector of transmitted electrons. The pixelated detectors
Miroslav Slouf +3 more
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Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale
Nature Communications, 2023 Four-dimensional scanning transmission electron microscopy (4D-STEM) has recently gained widespread attention for its ability to image atomic electric fields with sub-Ångstrom spatial resolution.
Joel Martis +17 more
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The 4D Camera: Very High Speed Electron Counting for 4D-STEM [PDF]
Microscopy and Microanalysis, 2019 Author(s): Ciston, Jim; Johnson, Ian J; Draney, Brent R; Ercius, Peter; Fong, Erin; Goldschmidt, Azriel; Joseph, John M; Lee, Jason R; Mueller, Alexander; Ophus, Colin; Selvarajan, Ashwin; Skinner, David E; Stezelberger, Thorsten; Tindall, Craig S; Minor, Andrew M; Denes ...
Ciston, Jim +15 more
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Patterned probes for high precision 4D-STEM bragg measurements [PDF]
Ultramicroscopy, 2020 Nanoscale strain mapping by four-dimensional scanning transmission electron microscopy (4D-STEM) relies on determining the precise locations of Bragg-scattered electrons in a sequence of diffraction patterns, a task which is complicated by dynamical scattering, inelastic scattering, and shot noise. These features hinder accurate automated computational
Zeltmann, Steven E +6 more
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AutoDisk: Automated diffraction processing and strain mapping in 4D-STEM
Ultramicroscopy, 2022 Development in lattice strain mapping using four-dimensional scanning transmission electron microscopy (4D-STEM) method now offers improved precision and feasibility. However, automatic and accurate diffraction analysis is still challenging due to noise and the complexity of intensity in diffraction patterns.
Sihan Wang +3 more
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JPhys Materials, 2023 We discuss the benefits and showcase the applications of using a fast, hybrid-pixel detector (HPD) for 4D-STEM experiments and emphasize that in diffraction imaging the structure of molecular nano-crystallites in organic solar cell thin films with a dose-
Mingjian Wu +3 more
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Real‐Space Observation of Potential Reconstruction at Metallic/Insulating Oxide Interface
Advanced Materials Interfaces, 2023 Electric field reconstruction at interfaces plays a crucial role in device performances controlling, for example, Schottky potential barrier and interfacial Rashba effect.
Qingxuan Jia, Alexandre Gloter
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