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Title: Image simulation for electron energy loss spectroscopy

Abstract

In this paper, 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 Å 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 localization of images based on core-loss electron energy loss spectroscopy is examined as function of both probe-forming aperture and detector size. The effective ionization is nonlocal in nature, and two common local approximations are compared to full nonlocal calculations. Finally, the affect of the channelling of the electron probe within the sample is also discussed.

Authors:
 [1];  [1]
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  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1286676
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Micron
Additional Journal Information:
Journal Volume: 39; Journal Issue: 6; Journal ID: ISSN 0968-4328
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; EELS; STEM; Localization; Nonlocality

Citation Formats

Oxley, Mark P., and Pennycook, Stephen J. Image simulation for electron energy loss spectroscopy. United States: N. p., 2007. Web. doi:10.1016/j.micron.2007.10.020.
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Oxley, Mark P., & Pennycook, Stephen J. Image simulation for electron energy loss spectroscopy. United States. https://doi.org/10.1016/j.micron.2007.10.020
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Oxley, Mark P., and Pennycook, Stephen J. Mon . "Image simulation for electron energy loss spectroscopy". United States. https://doi.org/10.1016/j.micron.2007.10.020. https://www.osti.gov/servlets/purl/1286676.
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@article{osti_1286676,
title = {Image simulation for electron energy loss spectroscopy},
author = {Oxley, Mark P. and Pennycook, Stephen J.},
abstractNote = {In this paper, 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 Å 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 localization of images based on core-loss electron energy loss spectroscopy is examined as function of both probe-forming aperture and detector size. The effective ionization is nonlocal in nature, and two common local approximations are compared to full nonlocal calculations. Finally, the affect of the channelling of the electron probe within the sample is also discussed.},
doi = {10.1016/j.micron.2007.10.020},
journal = {Micron},
number = 6,
volume = 39,
place = {United States},
year = {Mon Oct 22 00:00:00 EDT 2007},
month = {Mon Oct 22 00:00:00 EDT 2007}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1016/j.micron.2007.10.020
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  • DOI: 10.1143/JPSJ.12.618
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