Image Formation Based on Atomic Resolution Core-loss Electron Energy Loss Spectroscopy
نویسندگان
چکیده
منابع مشابه
Data processing for atomic resolution electron energy loss spectroscopy.
The high beam current and subangstrom resolution of aberration-corrected scanning transmission electron microscopes has enabled electron energy loss spectroscopy (EELS) mapping with atomic resolution. These spectral maps are often dose limited and spatially oversampled, leading to low counts/channel and are thus highly sensitive to errors in background estimation. However, by taking advantage o...
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Aberration correction of the probe forming optics of the scanning transmission electron microscope has allowed the probe-forming aperture to be increased in size, resulting in probes of the order of 1 A in diameter. The next generation of correctors promise even smaller probes. Improved spectrometer optics also offers the possibility of larger electron energy loss spectrometry detectors. The lo...
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by electron energy loss spectroscopy Julia A. Mundy, Qingyun Mao, Charles M. Brooks, Darrell G. Schlom, and David A. Muller School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA Department of Materials Science and Engineering, Pennsylvania State University, Unive...
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A systematic study of simulated atomic-resolution electronic energy-loss spectroscopy (EELS) for different graphene nanoribbons (GNRs) is presented. The results of ab initio studies of carbon [Formula: see text] core-loss EELS on GNRs with different ribbon edge structures and different hydrogen terminations show that theoretical core-loss EELS can distinguish key structural features at the atom...
متن کاملHigh-energy-resolution monochromator for aberration-corrected scanning transmission electron microscopy/electron energy-loss spectroscopy.
An all-magnetic monochromator/spectrometer system for sub-30 meV energy-resolution electron energy-loss spectroscopy in the scanning transmission electron microscope is described. It will link the energy being selected by the monochromator to the energy being analysed by the spectrometer, without resorting to decelerating the electron beam. This will allow it to attain spectral energy stability...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2006
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927606062416